There are various benefits from having cold showers, my main reason is its good for your hair, hot water, causes baldness, and shampoo causes greyness. also useful for heating the blood up, and kill any virus, losing weight, increasing production of red or is it white cells. plus you save the planet, and you are unlikely to be late for work, due to lounging in the bath. Havent missed a day of work, in 25 years.