Fat finding reveals why diets don't work
Want to get rid of some fat cells as you age? Fat chance.
You're stuck with the number of fat cells you have acquired by about age 20, a new study finds.
Researchers have known that people gain and lose weight at least in part by changing how much fat is in their fat cells. The new finding is particularly important for obese people, who the researchers say can have twice as many fat cells as their lean counterparts.
The finding also suggests that obesity in adulthood is at least partly determined by diet and exercise in childhood.