Just completed 1 month of cold showers in the morning So far I spend about 7- 10 minutes and increasing slowly. Haven't gotten round to measuring the water temp, but its COLD enough for now. I'll get round to doing that soon. A week or so ago, I had to get up at 5am to catch a local flight. It was for me , a natural enemy of cold ( I'd sooner be seen in hell than Iceland!) the only way I could get into the (cold) shower was to do a rendition of James Brown's "Sex Machine". Any spiritual benefits of a cold shower was immediately lost by my intuitive choice of tune :P, but I lasted the course.