Recent Blog Articles

Postpartum anxiety is invisible, but common and treatable

The popularity of microdosing of psychedelics: What does the science say?

Pouring from an empty cup? Three ways to refill emotionally

Is pregnancy safe for everyone?

New pediatric guidelines on obesity in children and teens

Screening tests may save lives — so when is it time to stop?

Natural disasters strike everywhere: Ways to help protect your health

The case of the bad placebo

Do we feel pain more at night?

If you use cannabis, do it safely
Staying Healthy
Ask the doctor: How you burn calories matters when you're trying to lose weight
![]() |
Q. Is it true that losing weight is mostly a matter of calories in, calories out?
A. For the first 30 years of my life, I was slim. But in my 30s, I started to gain weight. My doctor told me just what I would have told one of my patients: "It's simple: you have to burn off with exercise more calories than you've eaten. You need to exercise more or eat less. Your weight problem is a problem of willpower."
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!