So, I can vouch for the awesomeness of taking a cold shower. I can’t yet for its impact on weightloss, but I think it seems to be a nice thing to do, and I like that it does kinda wake me up (I think?).
Honestly, though, I’m a little stumped.
In Tim Ferriss’ book 4-Hour Body, he seems to make the contradictory claims that 1) Cold showers wake you up, and 2) Cold showers help you go to sleep. Or was that ice baths?
In any case, I’ll stick with cold showers in the morning, and warm tea at night!)