Maybe my mom is right. She tells me, “You’ll start gaining weight as you start working and get older.” I always respond by saying, “No! Exercise is my life! I’ll be fit forever!
Well…well…well. Guest what! Some of us young, healthy guys may be at risk of gaining unwanted fat as we age due to decreasing sleep. In a study recently published in the Journal of American Medical Association, researchers found that a lack of deep sleep decreased the production of human growth hormone (HGH) by the anterior pituitary gland. We already know how important HGH is to mass gain and fat loss.
Another study found that slow-wave, or deep sleep, decreased by more than five and a half times from young adulthood to mid-life. This means that if you can get about 8 hours of deep sleep per night when you’re 15, you’ll only be able to get about an hour and a half of deep sleep when you’re 40!