Recent Blog Articles

If cannabis becomes a problem: How to manage withdrawal

Corneal transplants becoming more common

An emerging treatment option for men on active surveillance

Gun violence: A long-lasting toll on children and teens

Adult female acne: Why it happens and the emotional toll

Talking to your doctor about your LGBTQ+ sex life

Untangling grief: Living beyond a great loss

Thunderstorm asthma: Bad weather, allergies, and asthma attacks

Heart problems and the heat: What to know and do

I’m too young to have Alzheimer’s disease or dementia, right?
Jet Lag
What Is It?
Jet lag is a type of sleep disorder that is a reaction to traveling between time zones.
Our bodies naturally develop a sleep-wake cycle that is tied to the patterns of light and dark in our environment. This cycle, called the circadian rhythm, affects many body processes, including temperature and hormone levels.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.
Sign Me UpAlready a member? Login ».
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!