"I think she's gone through four years of sleep deprivation."

He claims to hold the world record for sleep deprivation.

And that can lead to problems associated with sleep deprivation.

It meant he'd pay for the sleep deprivation at a later time.

This makes understanding the effects of sleep deprivation very important.

This is sometimes combined with high levels of sleep deprivation.

Total sleep deprivation means being kept awake for days or weeks.

Her sleep deprivation was apparent in class, she said recently.

But in most cases, these are identical to those for sleep deprivation.

In some cases, he said, "the most important thing to do is avoid sleep deprivation before you go."