There are a few dangers associated with using saunas, the most common of which is dehydration. When you’re exposed to high temperatures in a sauna, your body sweats to cool down. This sweating can result in loss of water and minerals, which can lead to dehydration if it’s not replaced.

Other potential dangers associated with saunas include heat stroke and heart attack. These are both severe but rare conditions that can occur if you’re exposed to high temperatures for an extended period of time.