🔥 Post-Workout Sauna = Endurance Upgrade Heat isn’t just for relaxation — it’s a performance tool. A study published in the Journal of Science and Medicine in Sport found that adding sauna sessions after training for just 3 weeks increased time-to-exhaustion by ~32%. Here’s why it works 👇 • Heat stress expands plasma volume (more blood = better oxygen delivery) • Improves cardiovascular efficiency • Trains the body to tolerate fatigue longer • Mimics some benefits of endurance training — witho