Ice Water Hack For Weight Loss: All You Need to Know by DIY Active | Fit. Food. Life. Tips | based In the United States. The Ice Water Hack operates on the principle of thermogenesis, which is the body’s way of producing heat to maintain its internal temperature. When you drink ice-cold water, your body needs to expend energy to warm it up to your core temperature of around 98.6°F (37°C). Read more! weight loss tips, ice water benefits, cold water therapy, metabolism boost, ice water