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Small drinks, big energy?

Do products like 5-hour Energy work--and are they safe?

Joseph Greene, email

For adults seeking the occasional boost, the answer is a qualified yes. Caffeine and other compounds in energy drinks help us stay focused and energized by triggering a spike in the stress hormone cortisol. But frequent use overworks the body's cortisol producers (adrenal glands), interferes with sleep, and can boost heart rate and blood pressure.

A regular diet of energy "shots" of high-dose ingredient blends is a short-lived fix with long-term risks, says Nikol Margiotta, D.N., a specialist at the Raby Institute for Integrative Medicine at Northwestern University in Chicago.

"Many of us are running on an empty tank and then want to know why we--or our kids--are tired and can't concentrate. Relying on energy drinks to get through the day is a big red flag to change your ways with better sleep, nutrition, and stress management," says Dr. Margiotta.

For the occasional afternoon pick-me-up, try chocolate. "I like organic chocolate because it contains small amounts of phenylethylamine and caffeine for sharpness and focus.

But I don't do it everyday," concludes the expert.

Douglas P. Zipes, M.D., an internationally acclaimed cardiologist, professor, author, and inventor, is an authority on pacing and electrophysiology (rhythms of the heart).

Heart Beat supplements the advice of your health care provider, whom you should consult for personal medical problems.

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Title Annotation:ASK DR. ZIPES; effectiveness of energy drinks
Author:Zipes, Douglas P.
Publication:Saturday Evening Post
Article Type:Brief article
Geographic Code:1USA
Date:Jul 1, 2012
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