What is jet lag?
Also referred to as desynchronosis and time change syndrome, jet lag is a sleep disorder that affects everyone who travels across a number of time zones. It affects the body’s internal time clock de-synchronizing it and local environment cues.
A body’s internal clock is called circadian rhythm, which tells our body when it is time to be awake and go to sleep. This circadian rhythm is what is disrupted by jet lag, as our body finds it hard to change to a new time zone. Jet lag disturbs the sleep pattern, making you feel fatigued and causes low energy levels.
What causes jet lag?
When you travel across time zones, the alteration in your circadian rhythm makes it hard for your body to catch and re-establish itself. Because we travel so quickly in an airplane, the body finds it hard to adjust to new times of light, darkness and meal times as well as different temperatures.
Research reveals that oxygen levels in airplanes also cause jet lag, as the low air pressure causes there to be less oxygen in the blood. This decline in oxygen affects your physical and mental abilities making you feel exhausted and lethargic. If you suffer from conditions such as heart or lung disease, you could be more severely affected.
How do you prevent jet lag?
Before traveling:
Change your sleep routine
Get lots of sleep before travelling
Stay relaxed
Change mealtimes beforehand
During the flight:
Avoid alcohol
Change your watch
Drink lots of fluids
Sleep
Stay active
When you arrive:
Avoid napping
Get used to your new routine
Spend time outdoors
Drink lots of water
Keep to your schedule