A sauna (סאונה) is a small, windowless room filled with benches and heated to a certain temperature to induce sweating. Higher temperatures create a dry heat without much humidity.
Unfortunately, there are few conclusive studies to show that sitting in a sauna promotes fat loss. If you experience any weight loss, it is only temporary as this is typically water weight loss and not actual fat loss. For healthy fat loss, you must exercise regularly and eat a well-balanced diet.
The release of toxins from the body is another myth surrounding saunas (סאונה), but there is little scientific evidence to support the idea that toxins are released from your body through excessive sweating.
Much like the myth of sauna fat loss, the dry heat from the sauna may cause pores on your face, neck and back to temporarily open to flush out surface dirt and oil creating the appearance of healthier skin, but excessive sweating does not remove harmful toxins. To help your body remove toxins, drink plenty of water and eat fruits and vegetables such as garlic, onions, citric fruits, blueberries, strawberries and leafy greens.
Stretching for 5 minutes before and after a workout reduces muscle cramping and tightness. Keeping your body limber also helps promote abdominal weight loss and other types of weight loss. But if muscles tightness continues after stretching, consider relaxing in a sauna (סאונה) for ten or fifteen minutes to help loosen tight muscles, tendons and joints.