13 Nov 03
Get Full Through Your Nose
Early clinical trials of an appetite-supressing nasal spray are promising:
The hormone in the spray, PYY (for Peptide YY 3-36), is what makes people feel full after a meal. It is made in the small intestine in response to food and then carried by the bloodstream to the brain, where it switches off the urge to eat. Obese people seem to make less of the hormone than lean people.
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