Based on the claims from some sauna manufacturers and spa owners, the sweat you produce in a sauna can help you lose weight and eliminate toxins from your body. Unfortunately, saunas have proven to be unsuccessful in either of these endeavors. In fact, serious health risks may become an issue when people misuse saunas for these purposes. Experts advise that saunas only be used by healthy adults, and that they should always be used with caution.
Function
Saunas are heated by either steam or infrared energy in an effort to heat the room. Depending on the type of sauna, interior temperatures may reach between 100 and 220 degrees Fahrenheit, says Creighton University's AltMed website. While some people use saunas simply for heat therapy, others hope to "sweat off" weight and toxins from their bodies.
Effects on Weight Loss
When an individual sweats in a sauna, their body loses both water and electrolytes. According to Military.com, this leads to dehydration of the body, which may result in temporary weight loss. However, because the change in weight results from water loss, the weight is immediately restored once the person re-hydrates with water or other fluids, says UAB Medicine.
Effects on Toxin Removal
Sweating has not been proven to be an effective method for removing toxins from the body or cleansing the pores. UAB Medicine assures that washing skin with a washcloth is more effective in cleaning pores than 30 minutes in a sauna. Sweat contains mostly water along with trace amounts of some non-toxic minerals and elements, such as sodium, potassium, calcium and urea. According to WomensHealth.gov, healthy individuals can rely on their kidneys, liver and gastrointestinal tract to rid the body of unnecessary toxins.
Potential Benefits
Some studies have linked sauna use to improved circulation and blood pressure, better heart health and relief of chronic pain. Individuals with chronic fatigue syndrome may also benefit from sauna use, says WomensHealth.gov. While supported by research and results, these studies are not yet extensive enough to provide firm evidence for the health benefits provided by saunas.
Warnings
Certain individuals should avoid sauna use, including pregnant women, children and older adults, says UAB Medicine. Those with heart disease or who take prescription medications should consult a doctor before using a sauna.
Improper use of saunas can have serious effects on a person's health. According to the NCAA, using saunas to lose weight can lead to severe dehydration, heat stroke, heart failure or even death. If you feel dizzy, nauseous or weak while using a sauna, exit the room immediately to avoid fainting and other potential health risks.
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