Where's the Heat?

I'll tell you where the heat is-in your indoor cycling/spinning sessions that you persevere with all winter long...I mean, don't you pour sweat in these the same way you do outdoors in the peak of summer? I've not been to one of these indoor winter sessions where my sweat rate is any less than it is outdoors in the peak of summer. This means that my total fluid and electrolyte losses will be pretty much the same when comparing outdoor summertime peak heat to indoor wintertime peak heat, which means one thing: Heat Endurance in and Heat Recovery from the indoor heat of winter training is exactly the same as that from outdoor summer heat. So, hydrate, and recover, appropriately.