If you have struggled to lose weight, it might help to put some money on the line. Researchers at the University of Pennsylvania assigned about 60 overweight adults to one of three groups. The first group played a lottery and won the money if they met their weight loss goal. The second group deposited their own money into an account and would lose it if they did not meet their goal. The final group was encouraged to lose weight without any financial incentive. They found that money talks. Researchers say that those in the groups who either won or lost money on this diet lost significantly more weight than the group in which money did not play a role. In fact, seven months later, the reward groups were still well below their starting weight.
The study is in the Journal of the American Medical Association.