Sauna use promotes muscle relaxation, improved recovery, and cardiovascular health, but weight loss from sweating is purely temporary water loss. Unlike ice baths immediately after lifting, heat from a sauna does not blunt muscle growth signals, though replenishing lost fluids and electrolytes is essential.
Does the sauna do anything?1. The weight loss is water. It comes back with your next drink. The scale drops, body fat does not.2. It is real for recovery feel. Heat relaxes muscle and helps sleep. Feeling better is a legitimate win.3. Regular heat helps the heart. Finnish data links frequent sauna to lower risk. It is still not a cardio replacement.4. Cold blunts gains, heat does not. Ice right after lifting can cut growth signals. Sauna does not carry that penalty.5. Drink and salt afterwards. You lose more than water in there. Going in dehydrated is the real risk.
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