Jet Lag and Mood Changes

Studies show that when humans travel across time zones, we are prone to having mood changes as a symptom of jet lag. Jet lag is caused by what researchers termed “internal desynchronization”. Internal desynchronization happens when humans’ circadian rhythm (i.e., internal bodily changes) remains 24-hour long, while external time cues (such as the rising of the sun) is extended from 24 hours up to 45 hours as people travel across time zones. As a result, people suffering from jet lag may have insomnia, become irritable, experience fatigue and reduced concentration, and hence and a temporary dip in mood we cannot call clinical depression but it can look a heck of a lot like that, at least for a couple days. According to research, East-to-West travelers have more symptoms than travelers of any other directions combined.

Jet lag not only causes mild depression, it also increases the risk of relapse in bipolar disorder. Multiple research found that disturbances in daily social routines as well as sleep deprivation marks the change of one’s mood state to mania in those who have a history of bipolar disorder. Furthermore, continued sleep deprivation can worsen the manic episode. In contrast to unipolar depression as a result of jet lag, bipolar symptoms are seen in significantly more eastbound travelers. 

Next time you travel try the Timeshifter app. Please note you have to start adjusting your rhythm 2 days before you travel!

Melatonin 1-3 mg is also a great way to help your body adjust.