Why the weight comes back — and what to do about it
Losing weight is hard. Keeping it off is harder, and the reason is physiological, not moral.
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When you lose weight, the body enters what researchers call biological resistance. Metabolism slows so you burn fewer calories at rest. Hunger hormones shift so you feel hungrier and less satisfied after eating. And the brain, wired from a time when food was scarce, treats the loss as a threat to defend against.
What this changes
It means regain is not evidence of failure. It also means the strategies that got the weight off — restriction alone — are rarely the strategies that keep it off. Protein intake, resistance training and consistent daily movement all help preserve the lean mass that keeps metabolic rate up.
Expect setbacks. Weight management is not a straight line, and progress includes learning from the weeks that don't go as planned.