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Jun 5

Want to lose weight? Go for a walk in the cold after dinner

Dr Aaron Cypess said: "We propose that agents that work similarly to cold in activating brown fat specifically can provide promising approaches to fighting obesity while minimizing other side effects.

"At the same time, we now know that ephedrine is not the way to do it."

For the study, the team gave participants injections of either ephedrine or a control saline solution and asked them to wear 'cooling vests' with water at 57 F pumped into them.

Their fat activity was then measured.

Researchers found that brown fat was the same following both the ephedrine and saline injections.

However, after the subjects wore the cooling vests for two hours, their brown fat activity was stimulated significantly.

Both interventions - ephedrine injections and the wearing of the cooling vests - did result in the same number of calories being burned, Dr. Cypess noted.

He said: "But we found that ephedrine was not using brown fat to do it.

"This is the first time it has been found that ephedrine does not turn on brown fat."

Both methods had effects of the sympathetic nervous system -- which activates the fight or flight response -- such as increased blood pressure.

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Want to lose weight? Go for a walk in the cold after dinner

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