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A fourteen-hour overnight fast improves baseline glucose control, but extending your window to sixteen or eighteen hours triggers essential cellular repair mechanisms like autophagy.
Chronic constipation is rarely just a fiber deficit; it reflects breakdowns in stomach acid, bile flow, pancreatic enzymes, or autonomic nervous system signaling.
A deep look at the metabolic timeline of fasting, from glycogen depletion and autophagy to refeeding stem cell activation, cardiac outcomes, and hormonal considerations.
Most of the benefit attributed to the eating window comes from what falls out of the diet when it closes, not from the clock itself.