The paragraph after the one you quoted answers the question you ask. > Yet the perception of total control is misguided. People often report gaining weight whe

The paragraph after the one you quoted answers the question you ask. > Yet the perception of total control is misguided. People often report gaining weight when they start taking antidepressants; women tend to if they suffer from conditions such as polycystic ovarian syndrome. Ms Gay describes how her weight gain occurred in the aftermath of a brutal sexual assault. It also raises the question of why a great slice of humanity collectively lost control of their eating habits in the 1980s, when obesity rates began to soar in developed countries. It’s not that every overweight person’s weight is out of their control. They’re trying to say that this is the case for at least some people.