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A single molecule in the intestinal wall, activated by the waste products from gut bacteria, plays a large role in controlling whether the host animals are lean or fatty, a research team, including scientists from UT Southwestern Medical Center, has found in a mouse study. When activated, the molecule slows the movement of food through the intestine, allowing the animal to absorb more nutrients and thus gain weight. Without this signal, the animals weigh less.

The cooler fall temperatures provide the perfect opportunity for Arizonans to get off the couch and spring into action. A move they need to make according to the latest health statistics which found 25% of all adults in the state are now considered obese and the number of people with diabetes has grown 30% in the last 5 years. "We need to commit to a healthier lifestyle now," said Will Humble, Public Health Services Deputy Director. "Obesity is more dangerous than lightning.

Aside from my job writing at About.com, I'm also a personal trainer, a job I've done for going on 10 years and one that I still love to this day....