Is Hot Yoga Safe During Pregnancy?

No, practicing yoga in a heated room is a significant contraindication for pregnancy, and it is not recommended by leading medical authorities, including the American College of Obstetricians and Gynecologists (ACOG). The primary and most serious risk is maternal hyperthermia, or an elevated core body temperature. During the first trimester, the fetal brain and spinal cord are developing rapidly. A significant increase in the mother's core body temperature (above 102.2°F or 39°C) has been scientifically linked to an increased risk of neural tube defects, such as spina bifida. The intense environment of a hot yoga class, especially one heated to 105°F, makes it very difficult for the body to regulate its temperature effectively, creating an unsafe environment for the developing fetus. Beyond the first trimester, the risks of dehydration, dizziness, and fainting are much higher during pregnancy, all of which are exacerbated by the heat. While yoga itself can be wonderfully beneficial during pregnancy, it is crucial to switch to a non-heated format, such as a dedicated prenatal yoga class. These classes are specifically designed to be safe and supportive for the pregnant body. Always consult with your doctor about any exercise program during pregnancy, but you should expect them to advise you to avoid hot yoga entirely.