Some effects of sleep deprivation are immediately obvious-like fatigue, difficulty focusing, reduced productivity, and increased appetite. Lack of sleep can also have much broader effects on the body-like the reduction of testosterone levels in men. A study conducted from 2003-2009 revealed that sleep deprivation decreased testosterone levels up to 15 percent among male study participants. [...]The post Lack of Sleep Could Reduce Testosterone appeared first on Sound Sleep Institute.