If you're injured and like to burn calories, how do you exercise? At first it seems like a perplexing question, but there's actually a very simple answer: saunas. Specifically, infrared saunas.

Numerous studies have indicated that saunas, in general, are extremely beneficial for the body. They can help treat a range of chronic health issues, such as high blood pressure, congestive heart failure, seasonal affective disorder and rheumatoid arthritis.

For those who aren't aware of the benefits of infrared saunas, they may just appear to be hot, giant boxes. But saunas actually burn calories and help your body release toxins. Some of these toxins include heavy metals like mercury and lead.

While normal saunas and infrared saunas do the same thing, which is heat your body, they operate very differently. The sauna you may be most familiar with involves heating the air with hot coals somewhere in the room. You usually regulate air temperatures by adding water to coals. On the other hand, infrared saunas only use light to heat the body. This light does not heat the air around it. This is helpful for people who can't bear the heat of a conventional sauna.

When infrared light hits your skin, it gently penetrates the surfaces up to one and half inches below your skin. This makes you sweat, which allows you to essentially detoxify and clean your system.And safety isn't an issue: For those worried that infrared saunas may negatively affect a person, no cases of harm have been reported.