Leptin
Definition
Leptin is a hormone produced by fat cells that signals the hypothalamus in the brain about our body fat level. When working properly, leptin helps maintain our body weight within a healthy range.
Analogy
Imagine leptin as your car's fuel gauge. Just like how this gauge alerts you when your gas tank is getting low or full, leptin communicates with your brain about how much energy reserves (or fat) you have stored up.
Related terms
Adiponectin: A protein hormone involved in regulating glucose levels and fatty acid breakdown.
Resistin: A hormone associated with obesity; it's believed to play a role in insulin resistance.
Obestatin: A peptide hormone thought to suppress hunger and decrease food intake.
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