Many of us try to make them, those new year's resolutions to get into shape, to save more money. But tonight, abc's matt gutman with a stunning number. Just how many weeks do we last? Three, two, one... See More
Many of us try to make them, those new year's resolutions to get into shape, to save more money. But tonight, abc's matt gutman with a stunning number. Just how many weeks do we last? Three, two, one -- happy new year! Reporter: No sooner had the newier's ball dropped and up popped jessica simpson, one of the very first ads of a new year. When a weight loss program is built for human nature, can you expect amazing. Reporter: Our resolutions, more personal. About 40% of americans make these promises. I was going to try to be nicer to my brother. Not complaining as much. Take more risks in life. Reporter: By some counts, a third of these promises are broken before the end of january. Not so amazing. The perennial top two resolutions are increasing exercise and decreasing our weight. It's a $66 billion a year industry. They continue with the programs they start? There are some people that do. But there's a group that kind of consistently is inconsistent. Reporter: Market analysts show that gym memberships peak in january and by march, they plummet. In fact, one stu shows that 80% of new members become no members after just eight weeks. It's a life style change. I hope I can make it. Reporter: To succeed at the gym and beyond, the experts say keep those resolutions small and think about keeping them to yourself. Because the satisfaction you get from that new year's day announcement to friends and family could zap your motivation. Do you have any resolutions this year? No. Not make any. Reporter: Probably sound advice. Matt gutman, abc news, miami.
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