Instant Genius

Why understanding what makes us hungry is key to weight loss

Mar 6, 2026
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INSIGHT

Body Fat Thermostat Controlled By Hormones

  • A body fat thermostat sets an defended weight via hormones.
  • Insulin and cortisol can raise that thermostat and trigger homeostatic hunger to restore higher fat stores.
INSIGHT

Everyday Cues Create Conditioned Hunger

  • Conditioned cues create persistent hunger by pairing contexts with eating.
  • Fung compares modern life to Pavlov's dogs: meetings, TV, commuting and ads repeatedly trigger anticipatory eating.
INSIGHT

Same Calories Produce Different Hormonal Outcomes

  • Different foods provoke different hormonal responses despite equal calories.
  • Example: a sugary latte spikes insulin and stores calories; an 800-calorie omelette keeps insulin low and sustains fullness.
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