The first group lost weight, but then regained it; they were called the relapsers. The second group lost weight and kept it off; these were the maintainers. If using the same approach to weight loss, relapsers adapted their lifestyle to the program, while maintainers usually tailored the program to fit their lifestyle. This unfortunate decrease can slow the rate of weight loss and help explain why it is hard to keep pounds off. People seeking treatment for a weight problem should be screened and guided into a program that suits their personality.