New studies have shown that sleep deprivation can slow down the metabolism. The reason for this may be that it messes the hormones or that it increases cravings for sugary foods.
Other studies have also shown that people who work night shifts have a slower metabolism. Exactly how this is linked is not proved. It may be because of bad diet or less of exercising linked to being up at strange hours. Scientists reveal that sleep deprivation can affect the appetite by messing up with our hormones.
In a Swedish study, researchers tested how lack of sleep are linked to slower metabolism. 15 normal-weighted people was recruited to the test were they randomly started with a normal 8 hours of sleep. After that they were kept awake for the whole next night. Small tissue samples were taken after the night of either sleeping or staying awake. They also studied blood samples for different sugary levels that affect the metabolism.
The results showed that sleep loss can affect a process called DNA methylation. This may lead to a larger absorption of fat. The muscle tissue had lower levels of protein which may affect the ability to build muscles.
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