Short Sleep Messes with Your Genes

Insufficient sleep is associated with obesity, cardiovascular disease risk, and even cognitive impairment. However, the mechanisms behind these effects remain somewhat ambiguous. In analyzing the whole-blood RNA of human test subjects, British researchers have recently found that 711 genes were up- or down-regulated by insufficient sleep after only 7 days with insufficient sleep. The genes they studied are associated with circadian rhythms, sleep homeostasis, oxidative stress (inflammation), and metabolism (obesity). 

PositiveTip: Adults need 7-9 hours of sleep per night for optimal health. How much sleep are you getting?