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How Do Thermogenic Diet Pills Work to Help Me Lose Weight?

How Do Thermogenic Diet Pills Work to Help Me Lose Weight? (0:35)

Thermogenic diet pills work by increasing your "fight or flight" chemical release, which causes your heart rate, blood pressure and body temperature to go up. Watch family physician Gretchen Phillips, MD, explain the warnings for these diet pills.

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Thermogenic Diet Pills work by increasing your fighter flight. They increase the ephedrine or ephedra if you remember from the news several years that make your heart rate go up, make your blood pressure go up and make your body temperature go up. That's where the name comes from.

Thermogenics. The problem with that is, is that is a stress to a body and if you're prone to high blood pressure, heart disease, stroke, seizure or a number of other medical problems, these can be very, very dangerous.