By Guest Indiana
I've found that in my case it is better to work out early morning. It improves my mood, my attitude to face the day...
By Guest Nicole
As more and more people discuss mental health issues in public forums, it seems to be lifting some of the stigma surrounding the topic. New research reveals that the number of students seeking help for mental health problems has risen considerably between 2009 and 2015.
Anxiety, depression, and panic attacks are on the rise among U.S. college students, suggests a new study.
Sara Oswalt, from the University of Texas at San Antonio, is the lead author of the new study, which was published in the Journal of American College Health.
According to estimates that the scientists cite, around 26 percent of people aged 18 and above in the United States live with a mental health condition in any given year.
By Guest Nicole
Exercise changes the brains and sperm of male animals in ways that later affect the brains and thinking skills of their offspring, according to a fascinating new study involving mice.
The findings indicate that some of the brain benefits of physical activity may be passed along to children, even if a father does not begin to exercise until adulthood.
We already have plenty of scientific evidence showing that exercise is good for our brains, whether we are mice or people. Among other effects, physical activity can strengthen the connections between neurons in the hippocampus, a crucial part of the brain involved in memory and learning. Stronger neuronal connections there generally mean sharper thinking.
Studies also indicate that exercise, like other aspects of lifestyle, can alter how genes work — whether and when they get turned on or off, for instance — and those changes can get passed on to children. This process is known as epigenetics.
By Guest Nicole
Nearly 80 genes that could be linked to depression have been discovered by scientists.
The findings could help explain why some people may be at a higher risk of developing the condition, researchers say.
The study could also help researchers develop drugs to tackle mental ill-health, experts say.
Depression affects one in five people in the UK every year and is the leading cause of disability worldwide. Life events - such as trauma or stress - can contribute to its onset, but it is not clear why some people are more likely to develop the condition than others.
Scientists led by the University of Edinburgh analysed data from UK Biobank - a research resource containing health and genetic information for half a million people.
They scanned the genetic code of 300,000 people to identify areas of DNA that could be linked to depression.
Some of the pinpointed genes are known to be involved in the function of synapses, tiny connectors that allow brain cells to communicate with each other through electrical and chemical signals.
Read more: https://www.eurekalert.org/pub_releases/2018-04/uoe-dsp041318.php
By Guest Nicole
Falls are a leading cause of injury and death among older adults. In 2014, about 1 in 3 adults aged 65 and older reported falling, and falls were linked to 33,000 deaths.
If you want to reduce the risk of falling, regular exercise may be your best bet, according to the latest recommendations from the U.S. Preventive Services Task Force.
The influential group came to that conclusion after reviewing evidence from about 20 studies that included adults 65 and older. Half of the studies recruited people who were at a high risk of falling. When the USPSTF experts combined data from several studies, they found exercise reduced the likelihood of falls and injury related to falls.
"There were a range of exercise interventions studied, all of which seemed to be effective," Dr. Alex Krist, vice chairperson of the USPSTF, said in an email.
The exercise programs focused on strength and resistance training, as well as balance and gait. "They included individual and group exercises, as well as referrals to a physical therapist or participation in a class like tai chi," said Krist, who is also a professor of family medicine and population health at Virginia Commonwealth University in Richmond.
By Guest Nicole
Eventually it happens to everyone. As we age, even if we're healthy, the heart becomes less flexible, more stiff and just isn't as efficient in processing oxygen as it used to be. In most people the first signs show up in the 50s or early 60s. And among people who don't exercise, the underlying changes can start even sooner.
"The heart gets smaller — stiffer," says Dr. Ben Levine, a sports cardiologist at University of Texas Southwestern Medical Center and director of the Institute for Exercise and Environmental Medicine at Texas Health Presbyterian Hospital, in Dallas.
Think of the heart muscle as a rubber band, Levine says. In the beginning, the rubber band is flexible and pliable. But put it in a drawer for 20 years and it will emerge dry and brittle.
"That's what happens to the heart and blood vessels," he says. And down the road, that sort of stiffness can get worse, he notes, leading to the breathlessness and other symptoms of heart failure, an inability of the heart to effectively pump blood to the lungs or throughout the body.
Fortunately for those in midlife, Levine is finding that even if you haven't been an avid exerciser, getting in shape now may head off that decline and help restore your aging heart. He and his colleagues published their recent findings in the American Heart Association's journal, Circulation.
The research team recruited individuals between the ages of 45 and 64 who were mostly sedentary but otherwise healthy.
By Guest Nicole
Unsurprisingly, Freeletics recommends exercise as one of the easiest and most efficient ways to bounce back from a bad day. "We know that a 20-minute bodyweight workout done at home can be just as effective as spending an evening in the gym, so there really are no more excuses not to work on a healthy body and a healthy mind," Freeletics CEO, Daniel Sobhani told Southern Living. But endorphins are a thing, so it's solid advice.
Read the full article: https://www.apartmenttherapy.com/bad-days-per-year-mood-exercise-effect-256267
By Guest Nicole
For people with coronary heart disease, losing weight will not prolong life, a new study reports, but increasing physical activity will.
To their surprise, Norwegian researchers found that in some coronary heart disease patients — those of normal weight — weight loss actually increased the risk for death.
The study, in the Journal of the American College of Cardiology, included 3,307 patients followed for an average of 16 years. There were 1,493 deaths.
Lowering body mass index by more than 0.10 in a year was associated with a 30 percent increase in the risk for death, but only in those of normal weight at the start. Weight gain was not associated with mortality.
via TheWorldNewsOrgvia journal.theworldnewsmedia.org
By Guest Nicole
Chester Bennington's widow says that she was "completely surprised" by her husband's passing, explaining that she believed Chris Cornell's death only two months earlier would serve as a deterrent against suicide to theÂ LINKIN PARKÂ singer.
ChesterÂ was found dead on July 20, 2017 Â— on what would have been the 53rd birthday of his late friend and fellow rocker,Â SOUNDGARDENÂ frontmanÂ Chris Cornell.
AfterÂ CornellÂ died in May 2017 as a result of suicide by hanging himself inside his Detroit hotel room,Â ChesterÂ wrote a letter thanking him for inspiring him and hoping he would find peace in "the next life."
On Wednesday (January 31),Â Talinda BenningtonÂ touched upon her tragic loss during an appearance at theÂ Canadian Event Safety Summit, where she spoke withÂ Anna Shinoda(wife ofÂ Mike Shinoda, who is also inÂ LINKIN PARK) andÂ Jim DigbyÂ (LINKIN PARK's production manager). The event focused on mental illness in the music industry, but much of the panel's discussion centered on life afterÂ Chester's death.
Talinda, who marriedÂ ChesterÂ in 2005 and had three kids with the late singer, said (see video below): "[ChesterÂ and I] were both very emotionally unhealthy in our own different ways, and over our time together Â— we were together for 12 and a half years Â— we both grew. He struggled with addiction and depression, two things that I've never struggled with. Although I do have my own demons, I did have my hardships growing up, we just handled them in very different ways. So I came from a point of complete Â— for lack of a better term Â— ignorance to his situation. But over time, I came to learn that taking care of your mental health is as important as your physical health."
Read more:Â http://www.blabbermouth.net/news/chester-benningtons-widow-says-her-husbands-suicide-was-a-complete-surprise/
By Guest Nicole
Exercise could help to make your fat tissue healthier, which, hear me out, is a good thing.
According to a timely new study, a single session of exercise may change the molecular workings of fat tissue in ways that, over time, should improve metabolic health.
This finding has particular relevance during the holidays, when, despite our best intentions, so many of us add to our fat stores. Exercise might make these annual bacchanals less metabolically damaging than otherwise.
Most of probably think of our fat tissue as inert and undesirable. But our fat is, in fact, a busy and necessary tissue, producing and sending out multiple biochemical signals that affect biological operations throughout the body.
Fat tissue’s most important responsibility, however, is to securely store fat, and we should hope that it performs this function well. Provocative recent research in both animals and people has found that, if a person’s or animal’s fat tissue is relatively leaky, allowing fatty acids to ooze into the bloodstream, those roving fat blobs can accumulate in other tissues, particularly the muscles and liver. Once there, they contribute to the development of insulin resistance, a serious metabolic condition that often leads to diabetes.
Read more: https://www.nytimes.com/2017/12/06/well/move/how-exercise-can-make-for-healthier-fat.html
By Guest Nicole
The number of American teens with depressed thoughts has been increasing since 2012. Looking at the data, it's possible to rule out some factors that might be causing it, like economic inequality and academic pressure. Jean Twenge, author of "iGen," believes all signs point to increased smartphone use as the likely cause. Twenge says it's not necessarily the screen time but the time that's lost to smartphones that could be spent on more meaningful activities, like face-to-face interaction. Around 2012, something started going wrong in the lives of teens.
In just the five years between 2010 and 2015, the number of U.S. teens who felt useless and joyless – classic symptoms of depression – surged 33 percent in large national surveys. Teen suicide attempts increased 23 percent. Even more troubling, the number of 13- to 18-year-olds who committed suicide jumped 31 percent.
In a new paper published in Clinical Psychological Science, my colleagues and I found that the increases in depression, suicide attempts and suicide appeared among teens from every background – more privileged and less privileged, across all races and ethnicities and in every region of the country.
All told, our analysis found that the generation of teens I call "iGen" – those born after 1995 – is much more likely to experience mental health issues than their millennial predecessors.
What happened so that so many more teens, in such a short period of time, would feel depressed, attempt suicide and commit suicide?
Read more: http://www.businessinsider.com/the-number-of-teens-who-are-depressed-is-soaring-2017-11
By Guest Nicole
At an office for Healthy Minds in High Wycombe, England, psychological well-being practitioners perform hourlong evaluations over the phone to decide what type of therapy is most appropriate for people who call asking for help. CreditAndrew Testa for The New York Times
LONDON — England is in the midst of a unique national experiment, the world’s most ambitious effort to treat depression, anxiety and other common mental illnesses.
The rapidly growing initiative, which has gotten little publicity outside the country, offers virtually open-ended talk therapy free of charge at clinics throughout the country: in remote farming villages, industrial suburbs, isolated immigrant communities and high-end enclaves. The goal is to eventually create a system of primary care for mental health not just for England but for all of Britain.
At a time when many nations are debating large-scale reforms to mental health care, researchers and policy makers are looking hard at England’s experience, sizing up both its popularity and its limitations. Mental health care systems vary widely across the Western world, but none have gone nearly so far to provide open-ended access to talk therapies backed by hard evidence. Experts say the English program is the first broad real-world test of treatments that have been studied mostly in carefully controlled lab conditions.
Read more: https://www.nytimes.com/2017/07/24/health/england-mental-health-treatment-therapy.html
By Guest Nicole
CNN)You've likely heard that regular exercise can reduce the risk of chronic conditions such as heart disease, diabetes or osteoporosis.
But a growing body of research shows it may have another, more surprising effect: improving your sex life.
In men, regular exercise appears to be a natural Viagra: It's associated with a lower risk of erectile problems.
Read more: http://edition.cnn.com/2017/06/28/health/sex-exercise-davis/index.html
By Guest Nicole
It’s common for people who suffer from irritable bowel syndrome (IBS) to also struggle with depression. Now, a small study published in the journal Gastroenterology suggests that taking a probiotic supplement may provide relief from both conditions.
The randomized, placebo-controlled trial shows a connection between probiotics and mood improvement in people with IBS and depression or anxiety, as well as changes in brain regions related to emotional processing. Most previous research on this topic has been on healthy people without mood disorders.
For the new research, scientists from McMaster University in Canada recruited 44 adults with IBS as well as mild to moderate anxiety or depression. They were followed for 10 weeks; half took a daily dose of the probiotic Bifidobacteriumlongum, and half took a placebo. The probiotics were manufactured and provided by Nestle, which also funded the study. (Nestle was not involved in collection, analysis or interpretation of study data.)
By Guest Nicole
New research shows a major advantage for those who are highly active
May 10, 2017
Brigham Young University
Despite their best efforts, no scientist has ever come close to stopping humans from aging. Even anti-aging creams can't stop Old Father Time. But new research reveals you may be able to slow one type of aging -- the kind that happens inside your cells. As long as you're willing to sweat.
Despite their best efforts, no scientist has ever come close to stopping humans from aging. Even anti-aging creams can't stop Old Father Time.
But new research from Brigham Young University reveals you may be able to slow one type of aging -- the kind that happens inside your cells. As long as you're willing to sweat.
"Just because you're 40, doesn't mean you're 40 years old biologically," Tucker said. "We all know people that seem younger than their actual age. The more physically active we are, the less biological aging takes place in our bodies."
The study, published in the medical journal Preventive Medicine, finds that people who have consistently high levels of physical activity have significantly longer telomeres than those who have sedentary lifestyles, as well as those who are moderately active.
Telomeres are the protein endcaps of our chromosomes. They're like our biological clock and they're extremely correlated with age; each time a cell replicates, we lose a tiny bit of the endcaps. Therefore, the older we get, the shorter our telomeres.
Exercise science professor Larry Tucker found adults with high physical activity levels have telomeres with a biological aging advantage of nine years over those who are sedentary, and a seven-year advantage compared to those who are moderately active. To be highly active, women had to engage in 30 minutes of jogging per day (40 minutes for men), five days a week.
"If you want to see a real difference in slowing your biological aging, it appears that a little exercise won't cut it," Tucker said. "You have to work out regularly at high levels."
Tucker analyzed data from 5,823 adults who participated in the CDC's National Health and Nutrition Examination Survey, one of the few indexes that includes telomere length values for study subjects. The index also includes data for 62 activities participants might have engaged in over a 30-day window, which Tucker analyzed to calculate levels of physical activity.
His study found the shortest telomeres came from sedentary people -- they had 140 base pairs of DNA less at the end of their telomeres than highly active folks. Surprisingly, he also found there was no significant difference in telomere length between those with low or moderate physical activity and the sedentary people.
Although the exact mechanism for how exercise preserves telomeres is unknown, Tucker said it may be tied to inflammation and oxidative stress. Previous studies have shown telomere length is closely related to those two factors and it is known that exercise can suppress inflammation and oxidative stress over time.
"We know that regular physical activity helps to reduce mortality and prolong life, and now we know part of that advantage may be due to the preservation of telomeres," Tucker said.
Materials provided by Brigham Young University. Note: Content may be edited for style and length.
By Guest Nicole
Being mistreated at work can make people take out their frustrations on loved ones at home. But a new study suggests that getting more exercise and sleep may help people better cope with those negative emotions by leaving them at work, where they belong.
People who burned more calories on a daily basis—by doing the equivalent of a long walk or swim—were less likely to take out their anger about work issues on people they lived with, the researchers found in the new study, which was published in the Journal of Applied Psychology.
The researchers used activity trackers to record sleep patterns and physical activity of 118 graduate students with full-time jobs. Each participant, and one person he or she lived with, also completed surveys about sleep, exercise and feelings of mistreatment at home or work.
Previous research shows that employees who are belittled or insulted by colleagues are likely to vent their frustrations and behave angrily toward people outside of work, says study co-author Shannon Taylor, a management professor at the University of Central Florida's College of Business.
The new study backs up this idea, but offers a bit of good news, as well: Employees who averaged more than 10,500 steps a day or burned at least 2,100 calories were less likely to mistreat their cohabitants than those who averaged fewer steps or burned fewer calories.
The researchers even calculated the exact energy expenditure needed to protect against work-to-home emotional spillover. Burning an additional 587 calories, the equivalent of a 90-minute brisk walk or an hour-long swim for a 195-pound male, can “substantially reduce the harmful effects of workplace undermining,” they wrote.
The findings also revealed that when employees felt they had a bad night’s sleep because of work issues, they were more likely to be grouchy at home. “When you’re tired, you’re either less able or less motivated to regulate yourself,” says co-author Larissa Barber, professor of psychology at Northern Illinois University.
Physical activity seems to counterbalance poor sleep, Barber says, because it promotes healthy brain functions needed to properly regulate emotions and behavior. “This study suggests that high amounts of exercise can be at least one way to compensate for sleep troubles that lead to negative behaviors at home,” she says.
Barber acknowledges that finding time to work out and get a full night’s sleep can be difficult when work pressures are mounting—and that often, job stress can directly relate to sleep quality. (Her previous research suggests that not only can a bad day at the office keep us up at night, but that poor sleep can also affect how we interpret events at work.)
But, she says, making the effort to burn some extra calories—and blow off some steam—can be worth it. It’s not only good for you, says Taylor, but it can benefit the people you live with as well.
“I would advise people to think of sleep and exercise from an investment perspective rather than another task on the to-do list,” Barber says. “It may seem like more work upfront, but the boost in motivation and energy can help you avoid sinking deeper into workplace stress and productivity problems.”
By Bible Speaks
Anxiety and Depression Don't Judge...Help Them....
You will never truly understand something until it actually happens to YOU!
5 "Every saying of God is refined.
He is a shield to those taking refuge in him."
( Proverbs 30:5) NWT
By Sammy Burke
Losing body fat fast is a great accomplishment, and doing so without spending excessive time exercising is even better. Dr. Jade Teta, an integrative physician and fitness trainer, created a program called Metabolic Prime that is designed to burn fat faster while spending much less time exercising.
According to studies and experts, any type of exercise that helps a person burn more calories than they need in a day will cause weight loss. So what makes an exercise program like Metabolic Prime a better choice than any other regular program?
Metabolic Prime introduces you to “Metabolic Micro-Bursts” a new exercise strategy that is short, fun, thrilling, and can be done anywhere without weights or gym equipment. These are 45-second movements that take only 15 minutes per workout session to get results.
Metabolic Micro-Bursts moves, or Micro-Bursts for short, has been promoted by Dr. Teta as one of the most effective training methods ever to come down the pike, both for burning fat and for improving health. One of the most popular claims for Micro-Bursts is that it burns a lot more calories than conventional cardio.
Whether you’re looking to shed a few pounds or achieve a drastic body transformation, optimizing the way your body burns calories may be beneficial. You can change your metabolism to work faster just by exercising in a certain way.
Most people think exercising to burn fat is simply about working out hard or long as they can. This approach may work for some people, but according to Dr. Teta, if you understand the relationship between metabolism and exercise you would know that exercise is not just about quantity, longer is not always better. Intelligent exercise provides just the right type of stimulus, in just the right amounts, to get the body to respond.
"The Micro-bursts strategy in Metabolic Prime time warps your metabolism back to the days when you could eat and move more freely said Dr. Teta. "The special workouts reawakens the “youth genes” currently dormant inside your body and returns you to your metabolic prime".
The first step towards getting a faster metabolism is to know what your metabolism is, how it works, and the important steps to get your metabolism burning. With the right information and guidance, it is easy to ignite your metabolism so you can get the fat loss results you want. With the Metabolic Prime System, Dr. Teta promises it’s possible to do this.
Dr. Jade Teta http://jadeteta.com/
Adrian Kellogg http://musclebuildingdigital.com/
By Guest Nicole
December 20, 2016
University of Pittsburgh Schools of the Health Sciences
Compared with the total time spent on social media, use of multiple platforms is more strongly associated with depression and anxiety among young adults, researchers have found in a national survey. People who report using seven to 11 social media platforms had more than three times the risk of depression and anxiety than their peers who use zero to two platforms, even after adjusting for the total time spent on social media overall.
Compared with the total time spent on social media, use of multiple platforms is more strongly associated with depression and anxiety among young adults.
Credit: Tim Betler/UPMC
Compared with the total time spent on social media, use of multiple platforms is more strongly associated with depression and anxiety among young adults, the University of Pittsburgh Center for Research on Media, Technology and Health (CRMTH) found in a national survey.
The analysis, published online and scheduled for the April print issue of the journal Computers in Human Behavior, showed that people who report using seven to 11 social media platforms had more than three times the risk of depression and anxiety than their peers who use zero to two platforms, even after adjusting for the total time spent on social media overall.
"This association is strong enough that clinicians could consider asking their patients with depression and anxiety about multiple platform use and counseling them that this use may be related to their symptoms," said lead author and physician Brian A. Primack, M.D., Ph.D., director of CRMTH and assistant vice chancellor for health and society in Pitt's Schools of the Health Sciences. "While we can't tell from this study whether depressed and anxious people seek out multiple platforms or whether something about using multiple platforms can lead to depression and anxiety, in either case the results are potentially valuable."
In 2014, Primack and his colleagues sampled 1,787 U.S. adults ages 19 through 32, using an established depression assessment tool and questionnaires to determine social media use.
The questionnaires asked about the 11 most popular social media platforms at the time: Facebook, YouTube, Twitter, Google Plus, Instagram, Snapchat, Reddit, Tumblr, Pinterest, Vine and LinkedIn.
Participants who used seven to 11 platforms had 3.1 times the odds of reporting higher levels of depressive symptoms than their counterparts who used zero to two platforms. Those who used the most platforms had 3.3 times the odds of high levels of anxiety symptoms than their peers who used the least number of platforms. The researchers controlled for other factors that may contribute to depression and anxiety, including race, gender, relationship status, household income, education and total time spent on social media.
Primack, who also is a professor of medicine at Pitt, emphasized that the directionality of the association is unclear.
"It may be that people who suffer from symptoms of depression or anxiety, or both, tend to subsequently use a broader range of social media outlets. For example, they may be searching out multiple avenues for a setting that feels comfortable and accepting," said Primack. "However, it could also be that trying to maintain a presence on multiple platforms may actually lead to depression and anxiety. More research will be needed to tease that apart."
Primack and his team propose several hypotheses as to why multi-platform social media use may drive depression and anxiety:
Multitasking, as would happen when switching between platforms, is known to be related to poor cognitive and mental health outcomes. The distinct set of unwritten rules, cultural assumptions and idiosyncrasies of each platform are increasingly difficult to navigate when the number of platforms used rises, which could lead to negative mood and emotions. There is more opportunity to commit a social media faux pas when using multiple platforms, which can lead to repeated embarrassments. "Understanding the way people are using multiple social media platforms and their experiences within those platforms -- as well as the specific type of depression and anxiety that social media users experience -- are critical next steps," said co-author and psychiatrist César G. Escobar-Viera, M.D., Ph.D., a postdoctoral research associate at Pitt's Health Policy Institute and at CRMTH. "Ultimately, we want this research to help in designing and implementing educational public health interventions that are as personalized as possible."
By Guest Nicole
Exercise may aid in weight control and help to fend off diabetes by improving the ability of fat cells to burn calories, a new study reports. It may do this in part by boosting levels of a hormone called irisin, which is produced during exercise and which may help to turn ordinary white fat into much more metabolically active brown fat, the findings suggest.
Irisin (named for the Greek goddess Iris) entered the scientific literature in 2012 after researchers from Harvard and other universities published a study in Nature that showed the previously unknown hormone was created in working muscles in mice. From there, it would enter the bloodstream and migrate to other tissues, particularly to fat, where it would jump-start a series of biochemical processes that caused some of the fat cells, normally white, to turn brown.
Brown fat, which is actually brown in color, burns calories. It also is known to contribute to improved insulin and blood sugar control, lessening the risk for Type 2 diabetes. Most babies, including human infants, are plump with brown fat, but we humans lose most of our brown fat as we grow up. By the time we are adults, we usually retain very little brown fat.
In the 2012 study, the researchers reported that if they injected irisin into living mice, it not only turned some white fat into brown fat, it apparently also prevented the rodents from becoming obese, even on a high-fat, high-calorie diet.
But in the years since, some scientists have questioned whether irisin affects fat cells in people to the same extent as it seems to in mice — and even whether the hormone exists in people at all.
A study published last year in Cell Metabolism by the same group of researchers who had conducted the first irisin study, however, does seem to have established that irisin is produced in humans. They found some irisin in sedentary people, but the levels were much higher in those who exercise often.
But whether irisin acted beneficially in human fat cells the same way as it did in the bodies and cells of mice was still an open and disputed question.
So for the new study, which was published in August in the American Journal of Physiology — Endocrinology and Metabolism, researchers at the University of Florida turned to white fat tissue from women who had undergone breast reduction surgery at the university hospital (with permission) and also to a very small amount of brown fat from people who had had surgery to treat kidney cancer. Most of our meager stores of brown fat cluster around our kidneys.
The researchers, who had previously studied irisin’s effects in mice, had a form of the human hormone available and now set out to marinate the fat cells with it, using three different dosages.
Some of the white fat cells that they treated were mature, while others were baby cells, essentially stem cells that could grow into fat or other types of tissue. They also bathed the brown fat with irisin.
All of the cells were soaked with the hormone for four days.
Throughout, the scientists checked the levels of a protein called UCP1 that is known to contribute to the browning of white fat, as well as for other biochemical markers that would indicate that the white cells were browning.
They found such markers, particularly in the cells that were exposed to moderate or high doses of irisin. Those cells soon began to produce significantly more UCP1 than other cells and also were more metabolically active, meaning that, in the body, they would burn calories.
At the same time, many of the stem cells in the fat tissue exposed to irisin ceased being fat cells and instead became a type of cell that matures into bone. The tissue treated with irisin, in fact, wound up with about 40 percent fewer mature fat cells than tissue untouched by the hormone.
Irisin had no effects on brown fat.
The results strongly indicate that irisin nudges human white fat to become brown and also suppresses the formation of new white fat, says Li-Jun Yang, a professor of hematopathology at the University of Florida and senior author of the study (which was funded by the scientists themselves). It also seems to promote the formation of bone.
“I think this study helps us to understand how, at a cellular level, exercise makes us healthier,” Dr. Yang says.
But these were living cells, not living bodies, and the effects of irisin in actual people still need to be established, she says, especially since many studies have shown that exercise rarely results in significant weight loss. Scientists also do not know what types of exercise lead to the greatest production of irisin or what amount of irisin might be ideal for health purposes.
Dr. Yang hopes to conduct studies of the hormone in people.
But even now, the science related to irisin is compelling enough, she says, that “my advice is, exercise as much as you can. We know it’s healthy and now we’re beginning to understand better why.”
By Guest Nicole
FRIDAY, Aug. 26, 2016 (HealthDay News) -- Couch potatoes have a higher risk of developing dementia in old age, a new study reports.
Seniors who get little to no exercise have a 50 percent greater risk of dementia compared with those who regularly take part in moderate or heavy amounts of physical activity, the researchers found.
Moderate physical activity can include walking briskly, bicycling slower than 10 miles an hour, ballroom dancing or gardening, according to the U.S. Centers for Disease Control and Prevention.
"It doesn't require intensive physical activity to decrease risk of dementia," said senior researcher Dr. Zaldy Tan. He is medical director of the Alzheimer's and Dementia Care Program at University of California, Los Angeles. "Even moderate amounts are fine."
Study participants aged 75 or older gained the most protective benefit from exercise against the onset of dementia, the findings showed.
"The message here is that you're never too old to exercise and gain benefit from it," Tan said. "These patients derive the most benefit from exercise because they are the ones who are at the age of greatest risk for dementia."
Brain scans of participants showed those who exercise are better able to withstand the effects of aging on the brain, the study authors said.
With age, the brain tends to shrink. But people who regularly exercised tended to have larger brain volumes than those who were sedentary, Tan and his colleagues found.
The new study involved about 3,700 participants in the Framingham Heart Study, a federally funded health research project begun in 1948. All were 60 and older.
Researchers measured how often the participants exercised, and tracked them over a decade. During the study, 236 people developed dementia.
To see how physical activity might have affected dementia risk, the researchers broke the study population down into fifths that ranged from sedentary to highly active.
The one-fifth containing the most sedentary people were 50 percent more likely to develop dementia than the other four-fifths, the investigators found. In other words, even a little exercise helped.
The research team also compared physical activity to brain scans taken of about 2,000 study participants, and found a direct connection between exercise and brain size as people aged. Those who worked out had more total brain volume.
There are several theories why exercise might help brain health. Increased blood flow caused by physical activity might "beef up" the brain, increasing its volume and promoting the growth of additional neurons, said Dr. Malaz Boustani. He is research director of the Healthy Aging Brain Center at the Indiana University Center for Aging Research and a spokesman for the American Federation for Aging Research.
"Physical exercise might end up leading to increased density of the connections between the neurons and create alternative pathways for signals" that might otherwise be impeded due to age-related brain shrinkage, he added.
Boustani likened this process to a street system in a city. The more alternative routes are available to drivers, the less likely it is that a blockage on one street will lead to a city-wide traffic jam.
Exercise also promotes secretion of helpful brain chemicals such as brain-derived neurotrophic factor (BDNF). Tan explained that "BDNF actually encourages the growth of new neurons, and the preservation of those we already have."
Heather Snyder, senior director of medical and scientific operations for the Alzheimer's Association, said that the true answer is likely a combination of factors related to exercise.
"It's likely there are multiple benefits, and they all funnel together," Snyder said.
According to Boustani, these results support other studies that have shown an association between exercise and protection against dementia, but clinical trials aimed at proving a definite link have so far been disappointing.
"When we take it to the next step and start doing experiments, randomizing patients to physical exercise versus no physical exercise and see if that will protect their brain, the story becomes a little bit muddy and unclear," he said.
Regardless, Boustani said he prescribes moderate intensity physical exercise to his patients as one way to preserve their brain health -- 5,000 steps a day for about a month, increasing to 10,000 steps over time.
"Given that there's no harm, and there's a possible benefit to the brain that hasn't been fully explained, I work with my patients and their families to help improve their physical activity," he said.
The findings were published online recently in Journals of Gerontology: Medical Sciences.
Woman sues construction company after electrician working at skyscraper jumped 53 stories to his death and landed on her carBy Guest Nicole
The driver of an SUV whose car was left covered in body parts when a suicidal construction worker landed on it after jumping from 53 stories is suing his employers.
Donna Crockett has filed a suit against Turner Construction accusing them of negligence, strict liability for an ultra-hazardous activity and loss of consortium between spouses.
She was kept in hospital for 10 hours after electrician Joseph Sabbatino fell 800ft from the $1billion Wilshire Grand Center in Los Angeles onto her vehicle - and says she cannot get over the horrific scene.
Ms Crockett is now seeking unspecified damages alleging that Turner Construction should have been aware of Sabbatino's condition and were negligent in hiring him.
Turner Construction have not yet commented on the case.
Coroner's lieutenant David Smith earlier confirmed that the 36-year-old's death - on only his second day on the job - was suicide.
Sabbatino's father Vance revealed that his son had a long battle with depression and had been taking medication before his death.
His devastated wife Melken Sabbatino wrote on Facebook after his tragic death that she was 'thinking about my husband. Missing you.'
Authorities found that the married Jehovah's Witness had removed his helmet and had not been wearing a harness before the fall.
Turner Construction released a statement to say there had been a safety barrier on the 53rd floor to prevents falls, and that the incident had not been work related.
Around 1,000 employees were given the day off following Sabbatino's death.
Horrified witnesses described the moment they saw Sabbatino fall to his death and land on a car below.
James Armstrong III, who had been walking to a nearby bank moments after the fall, said Ms Crockett had been 'hysterical' and waving her hands in the air.
'It's really taken a toll on me, because right now, I'm not strong and right now I am hurting,' Ms Crockett told KTLA.
'It was traumatic, it something that I never thought I would have to see.'
She was taken to hospital after the incident in shock.
Mel Melcon, an LA Times photographer, was on assignment at the building when he noticed the man's body lying 'off the driver's side of the car.'
'It sounded like a bag of cement fell off the edge of the building,' he said.
'No one thought it was a body,' Mr Melcon told his paper. 'We heard no screams.'
The vehicle escaped major damage but the rear side panel was splattered with blood, officials said.
After Sabbatino's body hit Donna Crockett's car, she got out and saw 'brain and other internal bodily matter splattered across her vehicle and the surrounding scene', CBS reported.
The suit says Crockett had never before seen a dead body and the experience left her 'shocked, overwhelmed, panicked, distressed and completely distraught.'
For confidential support in the U.S., call the National Suicide Prevention Line on 1-800-273-8255.
Depression is more than just a fleeting downer. We all have downers but they usually short lived. However, when a downer lasts several weeks, it is likely that a person has clinical depression. One's perception of themselves, others and their environment becomes noticeably negative and it can be very hard for a person to lift themselves out of the mire. Telling them to snap out of it, or that it is temporary often has the reverse effect desired. Often just a very patient listening ear is the best treatment that I've found with friends who suffer from depression. What do you think depression is? How do think it should be viewed? What do you think can help a person recover?
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