AP PSYCHOLOGY

Detailed explanation-1: -According to set point theory, after a time, your body will fight reduced calorie intake by sending signals (hunger pangs) and slowing down your metabolism to attempt to bring you back to your normal set point. Someone with an eating disorder may fixate on food, hunger, and weight, creating a negative loop.

Detailed explanation-2: -Your metabolism is the process by which your body converts what you eat and drink into energy. The more muscle mass you have, the faster your metabolism. But, when you lose weight and muscle mass, your metabolism slows down and so does your weight loss.

Detailed explanation-3: -Weight-Loss Effects on Appetite A study published in 2013 in the “European Journal of Clinical Nutrition” reported that weight loss causes an increase in ghrelin, a hormone that induces hunger–and therefore increases in appetite.

Detailed explanation-4: -In one study, when obese women ate 420 calories per day for 4–6 months, their resting metabolic rates slowed down significantly. What’s more, even after they increased their calorie intake over the following five weeks, their resting metabolic rates remained much lower than before the diet ( 3 ).