If saunas are used as directed they are perfectly safe to use and can actually offer many health benefits. There are a few precautions  you should be aware of though….
You should not use a sauna if you are pregnant, drunk or using recreational drugs
If you suffer from diabetes, heart disease or another condition that affects your blood pressure you should check with your GP before using a saunaIf you experience any dizziness, or feel sleepy or uncomfortable you should exit the sauna immediately and cool down  in the fresh airIt is safer (and more enjoyable) to share your  sauna experience with another personLimit your sauna session to a maximum of 15-20 minutesDrink plenty of water before and after your session to keep your body well hydrated