AP PSYCHOLOGY

Detailed explanation-1: -Leptin helps inhibit (prevent) hunger and regulate energy balance so that your body doesn’t trigger a hunger response when it doesn’t need energy (calories). Leptin mainly acts on your brainstem and hypothalamus to regulate hunger and energy balance, though you have leptin receptors in other areas of your body.

Detailed explanation-2: -Leptin decreases your appetite, while ghrelin increases it. Ghrelin is made in your stomach and signals your brain when you’re hungry. Your fat cells produce leptin. Leptin lets your brain know when you have enough energy stored and feel “full.”

Detailed explanation-3: -Ghrelin is a hormone that increases appetite. It is released by your stomach, and travels throughyour blood to sginal to your hypothalamus that your body is in need of fuel, as well as to conserve energy and find food. Typically, ghrelin is released when your stomach is empty.

Detailed explanation-4: -Leptin is a mediator of long-term regulation of energy balance, suppressing food intake and thereby inducing weight loss.

Detailed explanation-5: -Leptin exerts immediate effects by acting on the brain to regulate appetite (Figure 1). Via ObRb-receptor binding in the hypothalamus, leptin activates a complex neural circuit comprising of anorexigenic (i.e. appetite-diminishing) and orexigenic (i.e. appetite-stimulating) neuropeptides to control food intake.