Testosterone levels are significantly reduced after one week of sleep deprivation.
Sleep deprivation effects for men are significantly lower testosterone levels in his body. As a result, decreased sexual desire. It is concluded research by a team from the University of Chicago, USA.
Reduced levels of this hormone testosterone have a major impact, especially on young men - including reduced libido and poor reproductive system. Not only related to sexual health problems, it also affects the formation of muscle mass and bone density to be less than the maximum.
Low levels of testosterone are also associated with metabolic syndrome, namely a group of metabolic risk factors that increase the likelihood of heart disease, stroke and type 2 diabetes. The study's findings add weight to evidence that sleep deprivation has long-term effect on hormone levels.
The research team found the man who slept less than five hours in one day for a week or more, very low testosterone levels. This is much lower when compared with men who get enough sleep. The study, published in the Journal of the American Medical Association (JAMA), found that significantly reduced levels of a hormone that also makes a person look 15 years older.
"Low testosterone levels associated with reduced health and physical strength, which also may occur due to lack of sleep," said Professor Eve Van Cauter, lead researcher, as quoted by Telegraph.co.uk.
Professor Van Cauter has studied the effects of sleep deprivation for over 10 years.In his research, he was involved 10 young men with an average age of 24 years, have a healthy body and undergo a rigorous test.
The tests are conducted to determine the endocrine and psychiatric disorders and sleep problems. They were asked to spend three nights in the sleep laboratory for more than 10 hours. Then, during the eight subsequent nights they slept less than 5 hours.
The researchers then took blood samples every 15 to 30 minutes for 24 hours on the last day, 10 hours of sleep phase and the last day of the phase of sleep five hours.They were also asked to describe his feelings.
The study found that testosterone levels are significantly reduced after one week of sleep deprivation. Men who experience a decrease in testosterone levels also express their feelings became less calm.
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