Jet lag is a sleep disorder, also known as time zone disorder syndrome. The circadian rhythm influences many body functions including the sleep-wake cycle, hunger and bowel habits. Symptoms of jet lag include disturbed sleep, daytime fatigue, difficulty concentrating, gastrointestinal dysfunction, malaise, muscle soreness, and even menstrual disturbances. It is estimated that it takes about a day to recover from each time zone crossed during travel.
Jet lag is a sleep disorder caused by disrupting the body’s circadian rhythm from traveling across multiple time zones.