Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Cold, Flu, & Cough Health Center

Font Size

Exercising When Sick: A Good Move?

You're not feeling your best. Should you exercise when sick or sit this one out? How to decide.
WebMD Feature
Reviewed by Louise Chang, MD

You have been so great about your new exercise routine, rarely missing a day since you started up again. Then all of a sudden you are waylaid by a cold or flu.

What should you do? Should you skip the treadmill or forsake that Pilates class for a late afternoon nap? Will it be hard to get started again if you skip a day or two?

Recommended Related to Cold & Flu

Too Sick to Work?

You rise from a fitful night’s sleep with a sore throat and headache. Your temperature is slightly over 100 degrees, but judging by how crummy you feel, you wonder if it will spike to 103 degrees by day’s end. Should you drag yourself to work and risk infecting coworkers? Or should you phone in sick, even though your boss desperately needs you to pitch in during a stressful week? “People are concerned about calling in sick, but if you’re really feeling unwell and especially if you have a fever,...

Read the Too Sick to Work? article > >

Exercising When Sick: Should You or Shouldn't You?

The answer depends on what ails you, experts tell WebMD. For example, exercising with a cold may be OK, but if you've got a fever, hitting the gym is a definite no-no.

Fever is the limiting factor, says Lewis G. Maharam, MD, a New York City-based sports medicine expert. "The danger is exercising and raising your body temperature internally if you already have a fever, because that can make you even sicker," he tells WebMD. If you have a fever greater than 101 degrees Fahrenheit, sit this one out.

Maharam's rule of thumb for exercising when sick? "Do what you can do, and if you can't do it, then don't," he says. "Most people who are fit tend to feel worse if they stop their exercise, but if you have got a bad case of the flu and can't lift your head off the pillow, then chances are you won't want to go run around the block."

Personal trainer and exercise physiotherapist Geralyn Coopersmith, senior manager of the Equinox Fitness Training Institute in New York, has this to add: "The general rule is that if it is just a little sniffle and you take some medications and don't feel so sick, it's OK to work out. But if you have any bronchial tightness, it's not advisable to be working out."

You really need to know your limits, she says. "If you are feeling kind of bad, you may want to consider a walk instead of a run. Take the intensity down or do a regenerative activity like yoga or Pilates because if you don't feel great, it may not be the best day to do your sprints," says Coopersmith, the author of Fit and Female: The Perfect Fitness and Nutrition Game Plan for Your Unique Body Type.

"A neck check is a way to determine your level of activity during a respiratory illness," adds Neil Schachter, MD, medical director of respiratory care at Mount Sinai Medical Center in New York. "If your symptoms are above the neck, including a sore throat, nasal congestion, sneezing, and tearing eyes, then it's OK to exercise," he says. "If your symptoms are below the neck, such as coughing, body aches, fever, and fatigue, then it's time to hang up the running shoes until these symptoms subside."

Today on WebMD

hot toddy
15 tips to help you feel better.
man sneezing into elbow
Do echinacea and vitamin C really help a cold?
teen girl coughing
Get a good night’s rest with these remedies.
elder berry
Eat these to fight colds, flu, and more.
Natural Cold Flu Remedies Slideshow
cold weather
Allergy And Sinus Symptom Evaluator
Boy holding ear
woman receiving vaccine shot
woman with fever
Waking up from sleep
woman with sore throat