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Sleep Duration Affects Integrity of Sperm

A new study found a link between sleep duration and a measure of chromosomal health in sperm. The findings are published in the Journal of Sleep Research.

In the study of 2020 semen samples provided by 796 male volunteers from colleges in Chongqing (China) from 2013 to 2015, volunteers with more than nine hours per day of sleep and those with 6.5 hours or less per day sleep had 41 per cent and 30 per cent lower High DNA Stainability — an index that represents the proportion of sperm with abnormal chromatin — than did volunteers with seven to 7.5 hours per day of sleep. Chromatin is a complex of DNA and proteins that forms chromosomes.
The Guardian News

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