Well I do not know. Personally, I prefer to use a cold shower. If you take a cold shower every day, your immunity will increase and the body will become more resistant to viruses. In addition, regularly exposed to cold water, the body adapts and becomes less sensitive to hypothermia – as a result, we catch colds less often. Cold water is very useful for the skin and hair. Moreover, I recently installed a new shower at home using the website https://houseofenki.com/collections/2-outlet-shower-systems .