Some people drink hot water frequently for several reasons like the weather of a place or health conditions, but it can be harmful to your. cups ( liters) a day for women; cups ( liters) a day for men You will need more water in hot, humid, or dry areas. Drinking hot water calms your central nervous system, which controls your brain's response to stress, as noted by Healthline. A rigorous experiment revealed that on a hot, dry day, drinking a hot beverage can help your body stay cool. Other organisms have different temperatures than humans, since the enzymes and chemical reactions inside their bodies work with different heat. Protecting warm. Does boiling contaminated water make it safe to drink? It depends on the contaminant. Boiling water can kill germs, but things like lead. Other studies show that people who exercise in heat and humidity have a slower and lower rise in core body temperature when they drink cold rather than lukewarm. Women who are pregnant or breastfeeding need more fluid each day than The Australian Dietary Guidelines recommend that we drink plenty of water but how. Woman exercising with water bottle. Fluids keep your body hydrated; without them your body won't function at its best. If you don't drink enough fluid. In fact, throat infection and cold medicines don t react adversely to the temperature of water. Also, the right technique of swallowing pills is.