According to the Centers for Disease Control and Prevention (CDC), obesity has more than quadrupled in adolescents over the past 30 years. It is estimated that more than one-third of children and adolescents in the U.S. are overweight or obese. Obesity in adolescence is associated with a number of health
"Our study shows that epigenetic drift, which is characterized by gains and losses in DNA methylation in the genome over time, occurs more rapidly in mice than in monkeys and more rapidly in monkeys than in humans," explains Jean-Pierre Issa, MD, Director of the Fels Institute for Cancer Research at
Population aging could peak by 2040 in Germany and by 2070 in China, according to the study, which combines measures of aging with probabilistic population projections from the UN. In the USA, the study shows very little population aging at all in the coming century. Traditional population projections categorize "old age"
The study also identified different times throughout the day when activity was highest and lowest, across age groups and between males and females. These patterns, the researchers say, could inform programs aimed at increasing physical activity by targeting not only age groups but times with the least activity, such as
A Northwestern University-led research team now reports an inexpensive and renewable material that rapidly removes PFOA from water. The novel treatment effectively eliminates the micropollutant to below 10 parts per trillion, far below Environmental Protection Agency and all state health advisory limits. "Our material fully extracts the pollutant out of water,"
"Our primary goal was to figure out what's happening in houses that leads to higher air particle levels and, in turn, to unhealthy environments for kids," said study coauthor John Bellettiere, a graduate student in the SDSU-UCSD Joint Doctoral Program in Public Health. A research team led by SDSU environmental health