The Science of Appetite - Beating Overeating

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Indulging in food is a favorite past time for many.

But considering that 2/3rds of americans, or approximately 207,337,021 are overweight?

Perhaps we enjoy food a bit much.

So why can't we stop ourselves from consuming so much fatty and sugary food?

How do we beat overeating?

When your stomach is empty it releases a hormone called ghrelin.

Ghrelin interacts in the brain with the neurotransmitter NPY and turns on the desire to eat.

Once you satisfy this desire by eating, ghrelin levels drop back down and hunger subsides.

Conversely, after eating, a different hormone, leptin, is released from the stomach and fat cells, and interferes with NPY, further turning off the desire to eat, and making you feel full.

But if this hunger regulation system is in place, why can't we say no to that piece of cake, or second helping of chips?

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