Sore the next morning means your muscles read the memo. Hard seasons send one too.

Soreness is a receipt for work your body was not used to. Something was asked beyond the usual range, and the ache is repair beginning rather than damage settling in. Hard stretches of life leave a similar mark, a tiredness that is easy to misread as proof you are not built for the task. Usually it means the opposite, that the load registered.

After a week that took something out of you, treat recovery as part of the work instead of a reward for it. Sleep, eat properly, take the easy day without arguing about it. Adaptation happens in the rest, not in the effort alone.