4. Headaches
The chemistry behind the link between headaches and sleep isn't clear. But that doesn't mean it's not real.
“Headache is a symptom of sleep deprivation, but more commonly, it can trigger headaches in predisposed individuals,” Kushida says. This can especially be true of migraine sufferers.
Headaches are “part of what it means to feel bad if you’re sleep deprived,“ Shives says.