Is it ture that if youre hot and sweaty from physical activity...?

I have plenty of experience with going barefoot in the cold, and my experience is totally opposite! I used to be sickly, coughing and sneezing from early fall until late spring no matter what I tried, but for the past eleven years I've been barefoot year-round (in a very rainy climate and yes, including in the snow) and I have called in sick once -for two days, and not even in winter. Even a minor cough is rare. Do keep the rest of your body sort of warm though; it is your *core* temperature that counts when it comes to being susceptible to colds, not the temperature of your extremities. In that way, taking a cold shower could be harmful. Although a brief shower probably wouldn't hurt, and few hours is waaaaaay long to wait, your body regulates your temperature *much* quicker than that!!! When you stop sweating, your heartbeat & breathing is all back to normal, that's pretty much the sign your body has brought itself back to normal again, and you can then take a shower at any temperature you want. Just make sure you don't stay in a cold shower long enough to get chilled all through (regardless of whether you'd been exercising before or not), *that* is a sign of your core temperature dropping and is not a good thing.