We’ve all got a number in our heads. For some of us, it’s the 10 more pounds we want to lose to hit our ideal body weights. For others, it’s a pant size. Still others have their eyes set on a number that will get them to a “healthy” body mass index.
But even if we reach our ideal body weights, staying there is a whole other issue. Research from the University of California at Los Angeles shows that as many as two-thirds of people who lose weight gain it all back — and then some — within a handful of years.