Hot water is known to aid in digestion by increasing blood flow to the gastrointestinal tract and promoting the breakdown of food. It can provide a soothing effect, helping to relax muscles and relieve tension.cold water provides an instant cooling and refreshing sensation, making it perfect for hot weather or after physical exertion. Drinking cold water after exercise helps lower body temperature and aids in faster recovery. Cold water consumption can also temporarily boost metabolism as the body works to warm up the water, potentially aiding in weight management.