Some of the association between development of type 2 diabetes and sleep deprivation is probably due to the increased risk of obesity. In addition, poor sleep may alter the hormones involved in glucose metabolism. Sleep also seems to decrease the activity of the parasympathetic nervous system, which plays a role in insulin control and release. One study found that people who were restricted to four-and-a-half hours of sleep for four nights showed a 16-percent drop in their body's overall ability to properly respond to insulin compared to people who slept an average of 7.87 hours.
Credit: Ryoko Uyama / Getty Images
Powered By ZergNet
The Best Tools, Tech & Toys for 2015
Plus: The World's Most Efficient Workout
ON NEWSSTANDS NOW
Martin Short's Life Advice
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.