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Obesity has become a national problems, and more than 50% of Americans are overweight.
This increase the health care system burden. We have too many food choices; when we are
bored, we eat and when we are, when we have party we eat. So the eating becomes a problem
for the weight control. And because we have so many food choices, and it really, it's
up to us to control which kind of food we eat, we suddenly have a surgery to control
the weight, it's called stomach bypass surgery. But this surgery cost so much money and so
much problems, malnutrition and even death. So we need to find another way to control
our weight and address the fundamental causes of weight gain.