George comes on a vacation to India from the US. The long journey disturbs his biological system, and he suffers from jet lag. What is the cause of his discomfort?
The body's biological clock follows a set pattern during the 24 hours called the circadian rhythm. If a person travels through different time zones through long hours of journey, his circadian rhythm gets troubled. As a result, the person suffers from jet lag.
This causes sleep disturbance, bowel habits, anorexia, etc.