I used to take cold showers from time to time, usually to shock myself to wake up in the early morning. It turns out there are far more benefits to a cold shower two to three times per week. Taking a cold shower not only offers physical health benefits, but cognitive and mental ones as well. That’s because a blast of cold water to the skin sets off a chain reaction in the body, which in turn affects your physiology and mood. Essentially, cold water causes the surface vessels on the skin to vasoconstrict or open up, and that pushes blood away from the surface of your skin inwards to bathe your organs and brain with fresh oxygen and nutrients. Get the ful story here, then take a cold shower.