I read in an article about one football player that took contrasting hot and cold showers for his muscles. I can't remember the exact reason why but I thought it was interesting. A lot of athletes also take "ice baths" for 10-15 minutes to help heal and rehabilitate the muscles.
Yeah I read something bout the whole switching from hot to cold to hot showers, I think it has something to due with the contraction and expansion of your veins and arteries but i'm not 100% sure on that one :/
i had a conversation with my anatomy teacher the other day about this. If you shower with water too hot it will dry out your skin uhhmm cold water i dont remember what she said but she said showering while the water is tepid is the way to go tepid water is a little colder than warm :\ doesnt make sense but try it i think it really feels great when you feel the water you shouldnt know the difference if its hot or cold