Cold thermogenesis is about as close to an actual weight loss trick you can get because it requires no exercise whatsoever. Put simply, it's when you're expose

Cold thermogenesis is about as close to an actual weight loss trick you can get because it requires no exercise whatsoever. Put simply, it's when you're exposed to the cold and your body ramps up its metabolism to produce more heat to maintain your core temperature. This effect is pretty substantial, and it can even compete with moderate exercise even though it requires no exercise at all. You can prove this by getting into a bath of cold water, taking the temperature of the water before and after your bath, and doing some basic math. Remember that a calorie (kCal) is the amount of energy it takes to heat 1 Liter of water 1 degree Celsius. So if you've got a bath tub filled with 130 Liters and your body heated it up 2 degrees, then you've transferred 260 calories to the water. 2 x 130 = 260 kCal Indeed, this is a direct measurement of calories burned because ultimately all energy eventually becomes heat. Although it's an imperfect measurement (it can be somewhat corrected), anyone can do it to demonstrate that there is something about the cold that burns a significant amount of calories. If you were to repeat the experiment with water that is exactly at human body temperature, the result would be very different, much closer to zero. I actually built a calculator for this purpose because I got obsessed with the effect of cold thermogenesis and have done experiments around it: https://bathtubcalorimeter.com https://bathtubcalorimeter.com ^^ Yeah, it's an ugly site, but I mostly made it for myself and I like minimalism. (and dang it, apparently I messed up some of the styling on Safari) I do believe it's possible to lose a significant amount of weight by combining cold thermogenesis with a proper diet, but I think it's more practical as an adjunct to weight loss. Sitting in cold water isn't exactly fun or comfortable to a lot of people, but you do gain a tolerance to it. Usually I'll plunge into some 15.5C (60F) water and watch some YouTube or whatever. :D The beauty of it too is that if you manage to shiver after you are done with the bath then that means you are still burning even more calories, and shivering alone helps increase the amount of brown fat on your body, which is capable of burning even more calories.