The heat from a sauna soothes your nerve endings and warms and relaxes muscles, in turn relieving the tension from your body and minimizing joint pain. This is especially beneficial for those who suffer from illnesses such as arthritis, painful migraines, and headaches.
Saunas can be used as a means of calming the body and relieving it of stress. If you suffer from insomnia (one out three people have a mild case), it can also help induce sleep. The heat from the sauna helps the body release endorphins, a feel-good chemical that reduces the effects of stress on the body which can relax you enough to sleep better. The sauna heats up your body, so when you leave and begin to cool down, your body releases increased levels of melatonin, helping you feel more relaxed and therefore allowing you to have a deeper sleep.
The steam room helps to open up airways which improves your breathing and alleviates congestion. The wet heat from the steam room thins and opens the mucous membranes in the body, which helps to relieve the pressure. This is highly beneficial for those that suffer from asthma and bronchitis, as it helps with sinus relief.