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


Posting to the communities has been restored. Our technical team is still completing ongoing maintenance, and you may experience some technical problems.Thank you for your continued support and patience, and if you have any further questions, please email

Yours in health,
WebMD Community Management

Includes Expert Content
Too much teaching?
reneezumbagirl posted:
Dr. Weil,

I am a Licensed Zumba Instructor. I teach A LOT of classes-several of my own and
I sub for other instructors on a weekly basis.

Is there such a thing as "too much" teaching of cardio-type classes?

I had an overheating "episode" yesterday while teaching where I almost passed out. I was shaking and got a huge headache post episode. At about 1 hour post episode, my BP was 120/77 ( which I know is good) and my pulse was 78. Today I am super tired-very sore.

I want to know if Iam/can do damage to my muscles? What about my heart?

BTW, I am 47 years old, I am 5'2" tall and weigh 120 lbs.

Any advice you can give me is appreciated.
Rich Weil, MEd, CDE responded:
Hi renee,

Yes, there's such a thing as too much. You sound over- trained. Symptoms of overtraining are loss of strength, speed, endurance, or other elements of performance, loss of appetite, inability to sleep well, chronic aches and pains or soreness, chronic colds or respiratory infections, overuse injuries like tendinitis, unusual fatigue, occasional increase in resting heart rate, irritability, or you just don't feel like exercising anymore.

You almost certainly need a break, at least 4 days, and maybe more. People get concerned about losing fitness during a break. Not true. In fact, you'll come back stronger. Muscles grow during downtime, not when you train. You're not permanently damaging your muscles, but what is happening is that you're never giving them time for recovery; you're breaking them down, but they can't repair and get stronger.

You should wait until you've got your strength back before getting started again, and when you start, one class a day and then you can build up to two, but listen to your body. At the first sign of overtraining, if it does happen, then you should cut back. And during this break time make sure to stay hydrated and eat lost of nutritious food. You can post your diet-related questions to the Diet Community:

If you find your symptoms don't resolve after a break then you should speak with your doctor. If all it is is overtraining, then after a break you'll be back to normal.

I hope that helps. Let me know what happens.

Take care,

Helpful Tips

Water aerobics
Water aerobics does not put the stress on your knees, ankles and/or back. More
Was this Helpful?
24 of 24 found this helpful

Helpful Resources

Be the first to post a Resource!

Related Drug Reviews

  • Drug Name User Reviews

Report Problems With Your Medications to the FDA

FDAYou are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.