A little something on "The Benefits of Exercise Go Way Beyond the Muscles"
Interesting email from WebMed in my inbox this afternoon: quick quote:
Exercise and Fat
Laurie J. Goodyear, PhD, is a senior investigator at Joslin Diabetes Center and an associate professor at Harvard Medical School. She is studying the effect of exercise on fat, specifically the layer of white fat that sits just under the skin.
Most people know that exercise burns fat. It’s the reason most people hit the treadmill in the first place.
But fat isn’t just a place we park extra calories. “The tissue has a lot of other properties,” she says.
“Exercise really makes fat healthier and helps it burn more energy.”
Specifically, she says, exercise shrinks the size of individual fat cells, and the cells develop more energy-producing parts called mitochondria.
That means that fat tissue is burning more calories, even at rest, Goodyear says.
In one experiment, she took white fat from exercise-trained mice and transplanted it into inactive mice. Nine days later, those mice had better blood sugar control and their bodies responded better to insulin than mice that got fat from other inactive mice. What’s more, transplanted fat from exercised mice completely reversed the negative effects of eating a high-fat diet.
“What we’ve realized is that fat isn’t simply storage,” she says. “We see about 4,000 genes in fat tissue change with exercise. It’s not just that fat cells get smaller.”
Here's the link to the whole article:
http://www.webmd.com/fitness-exercis...lin-fat?page=1
Liana