Sarah called it her "lazy workout." Twenty minutes of quiet heat. While she read her book, her body was hard at work: heart rate elevating, circulation boosting, calories burning for thermoregulation. It was no substitute for the gym, but a perfect complement. She loved this efficient ritual—a session for her mind and a silent, supportive boost for her body. https://hybervitals.com/blogs/blog/can-the-sauna-burn-calories