Word: turnings
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...Those few friends became 350,000 visitors, thanks to Twitter and Facebook's ability to turn even the most obscure nugget into a trend. In just three days, thousands of people have left Byrne Fields messages, posted comments, and e-mailed their appreciation. Byrne Fields says she is grateful but overwhelmed by the response. "I wish I could reply to everyone individually, but there's no way I have time for it. I guess that's how John Hughes felt, actually...
...basic problem is that while it's true that exercise burns calories and that you must burn calories to lose weight, exercise has another effect: it can stimulate hunger. That causes us to eat more, which in turn can negate the weight-loss benefits we just accrued. Exercise, in other words, isn't necessarily helping us lose weight. It may even be making it harder...
...might think half a muffin over an entire day wouldn't matter much, particularly if you exercise regularly. After all, doesn't exercise turn fat to muscle, and doesn't muscle process excess calories more efficiently than fat does...
...other species, have a far greater capacity to cope with excess calories than we do because they have more of a dark-colored tissue called brown fat. Brown fat helps produce a protein that switches off little cellular units called mitochondria, which are the cells' power plants: they help turn nutrients into energy. When they're switched off, animals don't get an energy boost. Instead, the animals literally get warmer. And as their temperature rises, calories burn effortlessly. (See TIME's health and medicine covers...
Together with Shively's findings, says Dr. David Katz, director and co-founder of the Yale Prevention Research Center, the human data suggest a possible cause-and-effect link: stress may promote accumulation of visceral fat, which in turn causes metabolic changes in the body that contribute to heart disease and other health problems...