Sleep Problems: Dealing With Jet Lag

Overview

Jet lag is a sleep problem that happens when you fly across two or more time zones. Most people need to cross three time zones to notice it. The more time zones you cross, the worse it may be. It's usually worse when you fly east rather than west. You may have trouble sleeping. You may be sleepy during the day. Other symptoms include feeling weak, losing your appetite, or being constipated. Most people get better 3 to 4 days after their flight.

Jet lag can happen to anyone. Your age, fitness, and health and how often you fly don't make a difference in whether you get it.