Sleep Deprivation & Stress Both Activate Immune System

A woman lays in bed, unable to fall asleep, looking at a clock.
(Image credit: Sleep problems photo via Shutterstock)

Missing a night's sleep has the same effect on the immune system as experiencing physical stress, a new study from the Netherlands finds.

In the study, men who were kept continuously awake for 29 hours showed an increase in levels of white blood cells called granulocytes. And while levels of these white blood cells usually go through vary throughout a normal day, this rhythm was lost during sleep deprivation, the researchers said.

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