I've been hearing advertisements for a new fat reduction treatment called CoolSculpting, in which areas of fat are brought down to below the freezing point of fat but above the freezing point of water, causing the fat to freeze and destroy the fat cells while the non-fat cells remain unaffected.
This makes me wonder, couldn't one just spend time in an icebath? Various sources spread throughout the internet, most notably plastic surgeons, answer this with the trivial, "No! The CoolSculpting device is special and safe, and any method of cryolipolysis not using the device would be dangerous!" but from a medical perspective, why not?
This is the point where I explicitly say ice baths can cause hypothermia and a host of other issues, so I'm definitely not recommending it personally, but medically, wouldn't time with the torso in an ice bath, with a wetsuit/drysuit covering the legs and groin, have the same effect as CoolSculpting, but for thousands of times lower cost?