I come across an article on this topic every so often that I've always thought was interesting.
Many people believe that if you shower with your eyes closed that it causes the brain to work harder and gives it somewhat of a workout. Try this, it is not as easy as it sounds... with the lights on (that's part of it) close your eyes, turn on the water and set the temperature accordingly, shower, wash and dry off... then open your eyes.
It's amazing that something we do everyday can seem so foreign.
If you are really brave put in some foam ear plugs!
