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Are infrared radiant heating panels beneficial to health?

Infrared radiant heating panels are being promoted aggressively recently. Marketeers say about these device that they represent a safe way to reduce the heating bill. Some will go one step further and say that they have "miraculous therapeutic effects". Of course, all these alleged health benefits does not have a reputable scientific study to back the claims but hey... if it is cheap and it works, people will buy them regardless. Among the...