[PERSON]
moderate sleep reduction
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Situations
Sleep loss fuels modest weight gain; long naps raise risk
12 clusters · 52 sources · last updated
Latest: Columbia University study links short sleep to modest weight gain
Mid‑2026 evidence continues to link a nightly loss of roughly 80–90 minutes for six weeks to modest weight gain (≈0.45 kg) and a 0.5 cm increase in waist circumference. Hormonal shifts—lower leptin, higher ghrelin, corti