Too many showers?

[Ronin]

Wanna know how the Navy SEALS handle cold water? They're used to it.

Bullshit; If you don't acclimate and jump into really cold water without any preparation, your respiratory system is going to collaps and you can die from the shock.
If you abuse your body, your overall tolerance level to cold will deteriorate.

Why shower hot?
Sweat doesn't come of in cold water...