The famous 'slowing metabolism' is mostly a story we tell about three other things. The landmark analysis found that metabolism — adjusted for body size — holds remarkably steady from roughly age 20 to 60. What actually drifts: muscle is lost decade by decade, daily movement quietly shrinks, and hormonal shifts land in between. This guided journey separates the myth from the mechanics.
3 quick steps~2 minutesEvidence-awareHealth info, not a diagnosis