Hah. My guess is that you’re already doing that one. :)

How about this? Next time you jump in, start with freezing cold water (that’ll wake you up!). Then go to warm/hot and alternate it a couple times during your shower. Your blood vessels and capillaries will thank you. The cold—hot—cold combo is like a mini-workout for your circulatory system.

(While you’re doing that, you might want to remember the whole idea of gratitude as you appreciate the fact that you’re in the fortunate group of people who actually have the means to even regulate a shower like that!)