Statistics is powerful stuff. When using cross-sectional and longitudinal analyses to assess well-being in over 5,000 adults over thirty years, researchers initially found that well-being decreases with age: older people are unhappier than younger people. But when the researchers controlled for birth cohort, they found that each individual’s well-being increased with age. Sure, the 70 year olds were less happy than the 50 year olds; but those 70 year olds were happier than they were when they were 50. The study is published in the journal Psychological Science.
Leisure-time physical activity is associated with longer life expectancy, even at relatively low levels of activity and regardless of body weight, according to a study by a team of researchers led by the National Cancer Institute (NCI), part of the National Institutes of Health. The study, which found that people who engaged in leisure-time physical activity had life expectancy gains of as much as 4.5 years, appeared Nov. 6, 2012, in PLoS Medicine .
In addition to the well-known impact on risk for disorders such as diabetes and reduced life-expectancy, the effects of obesity may extend to psychological function. The so-called obesity epidemic may be causing decline in cognitive function through direct and indirect impacts on brain functioning. An expanding waistline thus appears to link to decreasing ability to learn and remember.
Alfred Nobel was a Swedish chemist, inventor, entrepreneur, author and pacifist . He was born on October 21st, 1833. After his death in 1896, much of his estate was used to establish the Nobel Prize. In 1993 on the 160th anniversary of Nobel’s birth, President Bill Clinton proclaimed October 21st as “National Biomedical Research Day” .
On National Biomedical Research Day, we celebrate the central role that biomedical research plays in improving human health and longevity. On this day, we acknowledge the promise that biomedical research plays for securing the future physical and mental well-being of people around the world. Biomedical research not only provides data that scientists and physicians need to treat and prevent diseases, but it also reveals the fundamental nature of life in humans, other animals, and plants.