Talk about sweat. It has been unridable outside because it has been warm, in the teens and 20s and there hasn't been much snow for a week. This means that the city can rest on their snow removal laurels and not plow. Everyone just drives over the light new snow and it mixes with the old salt/sand/snow to make a rutted, deep, slippery mush. Can't ride in that so I have been riding my stationary bike by the wood stove while I listen to Spotify. I ride in shorts and without a wind to cool you the sweat splashes all over the bike and floor. I use a towel to absorb it. Phew, nothing like 69 year old man sweat. My wife shuts the door, which makes it even hotter by the stove. I go outside with the velo for a cool down ride. Not too bad in 20F weather but your torso gets cold from sweat evaporation and your legs and head are still warm. About 5 minutes will stop most of the the sweating. It was snowing and windy while I had my cool down today. My left knee was crushed 38 years ago and is made out of hardware and bone graphs so I can't bend it all the way straight and can only bend it to a little less than 90 degrees. That is why the seat is a little low for a road bike. 15 years ago I had emergency back surgery and my left leg is now numb and lacks reflexes. I get steroid injections in my spine about once a year and the occasional microwave burning of some spinal nerves when biking becomes a little too painful. Biking is what keeps me going, that and daily stretching and ignoring pain. My advice, keep active. If you let yourself go in middle age you can pretty much forget about doing physical stuff when you get old. Also, avoid getting old at all costs.