ScienceDaily for January 6, 2011 reported on exercise and Prostate cancer.
The results showed that both non-vigorous and vigorous activity were beneficial for overall survival. Compared with men who walked less than 90 minutes per week at an easy pace, those who walked 90 or more minutes per week at a normal to very brisk pace had a 46% lower risk of dying from any cause.
National Geographic Daily News for September 1, 2010 reported on evolution in Australian lizzards.
Along the warm coastal lowlands of New South Wales (map), the yellow-bellied three-toed skink lays eggs to reproduce. But individuals of the same species living in the state's higher, colder mountains are almost all giving birth to live young.
ScienceDaily for January 2, 2011 reported on the effect of walking on people who have Alzheimer's.
"We found that walking five miles per week protects the brain structure over 10 years in people with Alzheimer's and MCI, especially in areas of the brain's key memory and learning centers," said Cyrus Raji, Ph.D., from the Department of Radiology at the University of Pittsburgh in Pennsylvania. "We also found that these people had a slower decline in memory loss over five years."
ScienceDaily for December 20, 2010 reported on activity and weight-loss.
Women particularly benefitted from high activity over 20 years, gaining an average of 13 pounds less than those with low activity; while men with high activity gained about 6 pounds less than their low-activity peers. High activity included recreational exercise such as basketball, running, brisk walking or an exercise class or daily activities such as housework or construction work.
ScienceDaily for December 17, 2010 reported on beet juice.
Beetroot juice has been one of the biggest stories in sports science over the past year after researchers at the University of Exeter found it enables people to exercise for up to 16% longer. The startling results have led to a host of athletes -- from Premiership footballers to professional cyclists -- looking into its potential uses.
ScienceDaily for October 14, 2010 reported on walking and our memory.
"Brain size shrinks in late adulthood, which can cause memory problems. Our results should encourage well-designed trials of physical exercise in older adults as a promising approach for preventing dementia and Alzheimer's disease," said study author Kirk I. Erickson, PhD, with the University of Pittsburgh in Pittsburgh.
ScienceDaily for October 14, 2010 reported on teenagers and sports.
Although the benefits of physical activity are well documented among teenagers, middle school children are an understudied population in adolescent physical activity research. The authors explored the relationship between physical activity (including sports participation), life satisfaction and self-rated health concurrently, for the first time, among 245 middle school students in grades 7 and 8. The 12- to 14-year-old boys and girls were asked to fill in questionnaires assessing their physical activity levels, their overall satisfaction with life and asking them to describe their own health.
ScienceDaily for October 5, 2010 reported on fat thighs vs. fat abdomens.
Using ice cream, candy bars and energy drinks to help volunteers gain weight, Mayo Clinic researchers have discovered the mechanisms of how body fat grows. Increased abdominal fat seems to heighten risk for metabolic disease, while fat expansion in the lower body -- as in the thighs -- seems to lower the risk. The findings, appearing in the October 4 edition of the Proceedings of the National Academy of Sciences (PNAS), help explain
why.
ScienceDaily for September 23, 2010 reported on changes in ones weight.
Although obesity is a major risk factor for disease, much of the threat may be associated with the metabolic (or cardiometabolic) syndrome, a cluster of risk factors related to diabetes and heart disease. Losing weight can improve health and reduce many of these risk factors. However, many people struggle to keep the weight off long-term. Now, researchers at the University of Missouri have found that people who perform resistance training while regaining weight can help maintain strides in reducing their risks for chronic disease.
ScienceDaily for September 21, 2010 reported on the effect of TV, video, and computers have on teens.
Even
teens from the consistently low group exceeded two hours per day of screen time on average, yet organizations such as the American Academy of Pediatrics and the Canadian Paediatric Society recommend limiting screen use to two hours per day. Increasers and consistently high screen users had the greatest increases in percent body fat, while decreasers had the lowest gains in percent body fat
ScienceDaily for September 15, 2010 reported on exercise in the American population.
On any given day, most U.S. adults report performing predominantly sedentary and light activities, according to a new study published in the October issue of the American Journal of Preventive Medicine. Overall only 5.07% report any vigorous intensity activity. The most frequently reported moderate activity was food and drink preparation.
ScienceDaily for September 15, 2010 reported on exercise and insomnia.
The study is the first to examine the effect of aerobic exercise on middle-aged and older adults with a diagnosis of insomnia. About 50 percent of people in these age groups complain of chronic insomnia symptoms.
ScienceDaily for August 19, 2010 reported on health of teenagers.
Teens who are overweight, get little exercise or who smoke may be more likely to have frequent headaches and migraines than teens with none of these factors, according to a study published in the August 18, 2010, online issue of Neurology®, the medical journal of the American Academy of Neurology.
ScienceDaily for July 23, 2010 reported on the dangers of sitting.
A new study from American Cancer Society researchers finds it's not just how much physical activity you get, but how much time you spend sitting that can affect your risk of death. Researchers say time spent sitting was independently associated with total mortality, regardless of physical activity level. They conclude that public health messages should promote both being physically active
and reducing time spent sitting.
