Heart Health
Cold-water dips: Healthy or risky?
Swimming in cold water is generally safe, but some people should be cautious.
Few things are more invigorating than a dip in the ocean, a lake, or any cool body of water, especially during late summer’s heat. A rare breed of hardy souls — mostly extreme athletes — even seek out ice-swimming competitions in the winter.
Some people swear by the health perks of cold-water immersion, which allegedly includes fat loss, improved sleep, and reduced inflammation — all of which may benefit cardiovascular health. But so far, the evidence is pretty shallow.
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About the Author
Julie Corliss, Executive Editor, Harvard Heart Letter
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