During the first trimester, it is best to avoid doing anything that can potentially raise your core body temperature. Fever is not safe for the baby, which means it can cause harmful effects to its development.

However, some women may find the effects of sauna relaxing. This therapy stimulates sweat production by naturally increasing your body temperature, which promotes blood circulation. In turn, this relieves back pains associated with pregnancy.

If you really want to have a sauna, do it after the first trimester. Stay hydrated during and after the sauna, and avoid staying inside for more than 5 minutes. Set the temperature to the lowest heat possible. Get out if you start feeling uncomfortable or if you feel anything unusual.