Sauna or ice bath after the gym? Start with your goal: relaxation, another event soon, or building muscle over time. Those goals can lead to different choices.

Cold water immersion can help some people feel less sore after exercise. But feeling better tomorrow and getting the most muscle growth from repeated training are different outcomes. Recovery needs more than one score.

Trials of cold immersion immediately after repeated strength workouts have found smaller muscle growth responses. That does not prove every cold shower is a problem, but it is a reason to question an automatic post-lifting ice bath.

A sauna adds heat and sweating. A lower scale reading afterward mainly reflects fluid loss, not a special fat loss result. After a hot Bali workout, give cooling down and rehydration priority before adding more heat.

You can also choose neither. Meals, fluids, sleep and manageable training still matter. For heat or cold sessions, use supervision, avoid alcohol and never make discomfort a competition.

The full comparison below includes a decision table for strength days, repeated events and relaxation. Choose around your goal and health circumstances, rather than collecting the most extreme recovery routine.