Why is it bad to take a ice-cold shower after exercising?

[Ds]

Hey so after exercising yesterday I felt like the only thing I wanted in life at that moment was to take a iceee cooolld shower! So I turned it on cold and got in.
The next thing I do is i wake up on the floor of the shower. What happened? How the hell did I pass out?

 

[yucatanboy2]

^Wow, that's scary. It might have been from the sheer shock to your system from going from hot and high circulation to cool. It could be that it cooled your circulation so fast that you didn't get enough oxygen to your brain. I don't know, but I doubt that the temperature change is good for your heart.

Maybe someone with more knowledge of anatomy/physiology or sports medicine can help you out.