A lack of sleep can reduce a man's sperm count by a THIRD
Previous studies have linked poor sleep to heart disease and cancer but now fertility has been linked
Researchers found that testicles shrank and sperm production decreased in sleep-deprived men
May be that lack of sleep affects testosterone levels
Too little sleep could be damaging young men's fertility by slashing their sperm counts, new research shows.
Scientists found sperm numbers dropped by more than a quarter in men not getting a full night's rest due to late nights, insomnia and broken sleep.
Alarmingly, it even made their testicles shrink, the study found.
Sleep loss has in the past been linked with increased risk of obesity, breast cancer and heart disease.
Experts believe the ideal amount of rest is between seven and eight hours a night.
For example, one US study showed adults getting less than six hours a night were 36 per cent more likely to suffer a heart attack and 22 per cent more at risk of a stroke than those who got a full seven or eight hours.
But the latest investigation, by researchers from the University of Southern Denmark, is believed to be the first to show insufficient rest can also affect male fertility.
Sperm counts have been tumbling in recent years amid fears that male fertility is being harmed by poor diet and lifestyle, or even 'gender-bending' chemicals in the environment.
But the latest research, published in the American Journal of Epidemiology, suggests modern sleep patterns may also be a factor.
Culled from Dailymail
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