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Your Bedtime Might be Harming Your Fertility

May 19, 2017
Katie Visco

We all know getting enough sleep is an essential part of a healthy lifestyle. But is your late bedtime potentially harming your fertility? Researchers at Harbin Medical University, China, have recently found that a bedtime after midnight can adversely affect healthy sperm. Results from the study indicate that Men who sleep less than 6 hours per night have lower sperm counts because their sperm died faster than men who went to sleep earlier in the evening and slept for longer hours. A 2013 study from the American Journal of Epidemiology found similar results. In this study, men who slept for less than six hours had a 25% lower sperm count that men who slept for the recommended 8 hours. Researcher believe that the combination of a late bedtime and shorter resting hours triggers an increase in an anti-sperm antibody. This protein antibody produced by the immune system blocks the sperm's movement, preventing the healthy sperm from fertilizing the egg. Unfortunately, sleeping in and for longer than 8 hours won't help your sperm count either. The Harbin study also found that participants who slept over 9 hours also had the same anti-sperm antibody reducing their healthy sperm count. A related study from 2016 found most testosterone is released during sleep, which may be why not getting enough sleep can affect fertility. So set a bedtime alarm and make sure you are getting your 7-8 hours of recommended sleep per night. Just DVR your favorite late-night show, it can wait until morning.


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