Half hour sleep can reverse effects of poor sleep, study
According to a new study, a short nap of about half an hour can reverse the effects of poor sleep among people.
Experts said that a short nap can relieve stress and bolster the immune systems that are affected by poor sleep. They said that the nap can be as little as half an hour. Health care experts have said that lack of sleep is a public health problem and it can contribute to reduced productivity as well as vehicle and industrial accidents. The US Centers for Disease Control and Prevention said that the lack of sleep can cause serious accidents.
Study authors Brice Faraut from the Paris Descartes University in France said, "Our data suggests a 30-minute nap can reverse the hormonal impact of a night of poor sleep. This is the first study that found napping could restore biomarkers of neuroendocrine and immune health to normal levels."
The researchers studied the relationship between hormones and sleep in a group of 11 healthy men between the ages of 25 and 32. They found that after a limited sleep, men recorded a 2.5-fold increase in levels of norepinephrine, a hormone and neurotransmitter that is involved in human body's flight response to stress. Norepinephrine increases body's heart rate, blood pressure and blood sugar. They found that there was no change in norepinephrine levels when the men had napped following a night of limited sleep.
Limited sleep also affected the level of interleukin-6, a protein with antiviral properties. The level fell after a night of restricted sleep but remained normal when they were allowed to take a nap. This indicated that naps can be beneficial for the immune system.
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