Tropical Weight Loss
Tropical Weight Loss
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Among older people, upbeat moods could mean greater life span. Happy people don't just enjoy life; they're likely to live longer, too. A new study has found that those in better moods were 35% less likely to die in the next 5 years when taking their life situations into account.
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Read More »Happy people don't just enjoy life; they're likely to live longer, too. A new study has found that those in better moods were 35% less likely to die in the next 5 years when taking their life situations into account. The traditional way to measure a person's happiness is to ask them about it. But over the past few decades, psychologist and epidemiologist Andrew Steptoe of University College London (UCL) says, scientists have realized that those measures aren't reliable. It's not clear whether they "assess how they're actually feeling or how they remember feeling," he says. When answering, people are more likely to count their blessings and compare their experience with the lives of others. The English Longitudinal Study of Ageing tried to get more specific. It has followed more than 11,000 people age 50 and older since 2002. In 2004, about 4700 of them collected saliva samples four times in one day and, at those same times, rated how happy, excited, content, worried, anxious, and fearful they felt. The saliva samples are still awaiting analysis for stress hormones, but Steptoe and his UCL colleague Jane Wardle publish findings today on the links between mood and mortality in the Proceedings of the National Academy of Sciences . Of the 924 people who reported the least positive feelings, 7.3%, or 67, died within 5 years. For people with the most positive feelings, the rate fell in half, to 3.6%, or 50 of 1399 people. Of course, it's possible that people who died sooner weren't as chipper because they were deathly ill or because of any number of other factors that affect both mortality and mood. The researchers adjusted for age, sex, demographic factors such as wealth and education, signs of depression, health (including whether they'd been diagnosed with major diseases), and health behaviors such as smoking and physical activity. Even with those adjustments, the risk of dying in the next 5 years was still 35% lower for the happiest people. The research shows that good moods are correlated with long life, but it's not proof that happiness makes people live longer, Steptoe says. Furthermore, "what we don't want to do, obviously, is make people feel guilty if they're not very positive people," Steptoe says. "On the other hand, we know that people's life circumstances are also very relevant," Steptoe says. That means it's important to make sure older people have adequate money, health care, and social support, he says. "I think this is pretty exciting and pretty powerful," says Laura Carstensen, a life span developmental psychologist at Stanford University in Palo Alto, California, who was not involved in this study but published a smaller one earlier this year in the journal Psychology and Aging with similar findings. In her study, older people in the San Francisco Bay Area recorded their emotions five times a day for a week, then were followed for many years. For 111 people, she found that happier people lived longer than people who experienced more negative emotions. Asking people to record their moods, she adds, "really does give you something different than asking people to tell you about their lives."
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Read More »Researchers with Duke University's School of Medicine suggest that physical decline begins in the decade of the 50s and worsens as we age, especially for those who don't exercise.
Typically, studies that have looked at age-related physical ability focused on testing those in their 70s and 80s. This study tested a wider age range — 775 subjects from age 30 to 90-plus — and found that exercise to offset physical decline needs to start before people are AARP-eligible. "Our research reinforces a life-span approach to maintaining physical ability — don't wait until you are 80 years old and cannot get out of a chair," lead author Katherine Hall, assistant professor of medicine at Duke, said in a statement. "The good news is, the ability to function independently can often be preserved with regular exercise." In the study, published in the Journals of Gerontology, all participants were given simple tests to measure their strength, balance or endurance: rising from a chair repeatedly for 30 seconds; standing on one leg for a minute; and walking for six minutes. Walking speed over a distance of about 10 yards was also measured.
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