I had a water heater go out, and I took cold showers for a while, even after I fixed it. I felt absolutely awake after getting out of the shower. It also di

I had a water heater go out, and I took cold showers for a while, even after I fixed it. I felt absolutely awake after getting out of the shower. It also didn't fog the bathroom mirrors. I stopped because one day I took a warm shower and just gave it up. Don't know if taking hot showers was a lack of discipline, or sanity returning.