05/01/2026
A 72-hour fast isn’t starvation.
It’s a controlled metabolic state.
During prolonged fasting, the body doesn’t “shut down.”
It adapts.
Insulin drops.
Fat becomes the primary fuel.
Ketones rise.
Cellular repair pathways, including autophagy, become more active.
This is when the body prioritizes survival over storage —
recycling damaged components, supporting metabolic efficiency, and helping preserve lean tissue through hormonal adaptation.
But this is not a protocol for everyone.
And it’s not a trend.
In clinical practice, fasting is a tool, not a challenge.
Context, preparation, and individual biology always matter.
This is physiology — not extremism.
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