How Our Hormones Control Our Hunger, Eating & Satiety
hubermanlab.comSaved by Nicolay Gerold
How Our Hormones Control Our Hunger, Eating & Satiety
Saved by Nicolay Gerold
Ghrelin is the primary hunger hormone, activated to tell your body it’s time to eat. Leptin is the antihunger hormone, which tells you when you’re full. Ghrelin levels decline after a meal as leptin levels rise.
The Fear of Hunger Many people today have an irrational—almost phobic—fear of hunger. We live in a society that teaches us that it isn’t ever good to be hungry, and that hunger can even be dangerous. Of course, this is partly true since everyone needs to eat, and when you’re hungry it triggers the reactive part of the survival instinct (which says
... See moreRemoving protein and fat in the diet may lead to overconsumption. There are natural satiety hormones (peptide YY, cholecystokinin) that respond to protein and fat. Eating pure carbohydrate does not activate these systems and leads to overconsumption (the second-stomach phenomenon).
potential food shortage—leptin levels are low. The relative absence of leptin’s message tells the brain, “I don’t have enough body fat!” Your brain then tells you to eat more and move less, which serves to change your behavior until your body fat is within a safer range. You become hungrier (and probably eat more), your metabolism slows down (thank
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