Soaking in a hot tub or sweating it out in a sauna may seem like just the relaxation and rejuvenation your pregnant body craves. However, many experts warn of the possible dangers of overheating during pregnancy. Hot tubs, saunas, and even a high fever can raise your core body temperature above 102 degrees (F), threatening the health and safety of your baby. A recent study found women who used hot tubs early in pregnancy were twice as likely to miscarry, while another study found them to be twice as likely to have a child with a neural tube defect, such as spina bifida. In addition, becoming overheated later in your pregnancy can make you lightheaded or faint, which can cause you to fall.
To play it safe, steer clear of hot tubs and saunas during your pregnancy. Instead, try taking warm tub baths, which are generally cooler than hot tubs, but will still help you relax while keeping you and your baby safe. Try adding a few drops of essential oils to the water to nourish your skin and ease tension.