Fasting Benefits Beyond Weight Loss
Fasting is not a diet — it's a signal
Beyond calorie restriction, fasting flips metabolic switches: ↓ insulin, ↑ growth hormone, ↑ BDNF, ↑ ketones. Each triggers distinct anti-aging pathways.
Fasting timeline
See what happens at each stage of a fast.
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Myth or Fact?
Swipe left for FACT, right for MYTH.
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BDNF +400% — your brain on fasting
Brain-Derived Neurotrophic Factor is the protein that drives neurogenesis and synaptic plasticity. After 24+ hours of fasting it rises 200-400% in animal models, and human ketone-clamp studies confirm BDNF rises with ketone availability. This is why fasting often produces unusual mental clarity in hours 16-30 — your brain is, in a real sense, getting younger.
Who should be cautious about fasting
Tap each — fasting isn't for everyone.
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Key Takeaway
Fasting triggers autophagy, boosts growth hormone, improves insulin sensitivity, and increases BDNF. It's one of the most accessible longevity tools.