Wim “The Iceman’’ Hof teaches that cold showers improve metabolic rate for weight loss, reduce stress levels, and increase immune response.33 If you’re new to cold immersion, Hof recommends beginning with a standard shower and finishing with the last 30 seconds with cold water. I’ve made the process more enjoyable by using a shower timer and bench to sit on. After a dose of cold shower therapy, you’ll be alert— guaranteed. While working from home, I target a cold shower between 1-3 PM…after a HIIT workout (#Hack 31). Stacking a HIIT workout, followed by a cold shower, is a powerful combo to K.O. the afternoon slump.
Source: Ben Meer