It’s an age-old story. A person has a huge amount of weight to lose and gets rid of most of it through a combination of diet, exercise, and lifestyle modification. And they feel fantastic. They’ve got energy for days, their skin glows, they exude newfound confidence, and they experience other small miracles. Many of you have lived this. But then something happens: the weight loss stops, or, worse, it reverses. They can keep the weight at bay as long as their diet is ironclad and they don’t skip any workouts, but as soon as they slip up even a little bit, they gain weight. And when they gain, they seem to gain it faster and more easily than should be normal. It just doesn’t seem fair.
What’s going on here?