The latest wellness trend may be little more than hot air — literally. Celebrities including Jennifer Aniston, Lady Gaga and Gwyneth Paltrow have advocated infrared saunas.
Costing about £50 for a half-hour session and able to generate more intense heat than traditional Finnish varieties, they’re seen as a high-tech way to sweat it all out.
Unlike a traditional sauna, which uses a stove to heat up humid air, infrared saunas work like a microwave, heating the body by shaking water molecules in the skin and fat with long-wavelength infrared light beams.
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