What is jet lag?
Jet lag is the out-of-step feeling you get when your body’s clock and the local clock disagree after crossing time zones.
Your internal clock
Your body runs on a rhythm of roughly 24 hours, called the circadian rhythm. It shapes sleep, alertness, appetite and body temperature. Light is its strongest signal.
Cross several time zones in a few hours and the light outside changes much faster than the rhythm can follow. For a while, your body is on home time while the sun is on local time. That gap is jet lag.
Common signs
These are everyday experiences, not a diagnosis. They vary from one person and one trip to another.
- Tired in the day, wide awake at night
- Trouble falling asleep, or waking too early
- A heavy or congested head
- Low concentration and a short temper
- Appetite and digestion out of step
- A stiff back, or general tension and stress
East or west?
Flying east shortens your day, so you are asked to sleep before your body is ready. Flying west lengthens it. Many travellers find eastward trips harder.
The more time zones you cross, the longer the body clock tends to need to catch up.
Everyday habits that help
- Get daylight at your destination, especially in the morning
- Go to bed and get up on local time as soon as you can
- Eat at local mealtimes, and keep the first meals light
- Drink water, and go easy on alcohol and late caffeine
- If you nap, keep it short and early in the day
Where the healing fits
Jet Lag Recovery is a gentle support alongside these habits. It is sent from a distance, so it works while you travel, work or rest.
When to talk to a professional
If your symptoms are severe, or they last for weeks, speak to a healthcare professional.