Sleep deprivation prevents your immune system from building up its forces. If you don’t get enough sleep, your body may not be able to fend off invaders.

Sleep deprivation prevents your immune system from building up its forces. If you don't get enough sleep, your body may not be able to fend off invaders.

Sleep deprivation prevents your immune system from building up its forces. If you don’t get enough sleep, your body may not be able to fend off invaders.