I don't ride when it's too foggy
I commute once or twice a week, on days I don't have patients coming at 7AM. Yes, I am a healthcare professional and healthy so far. From the population who "practice what you preach".
Too bad that my rides are on quite flat roads, I'm a southern, but I've noticed my route has a little elevation on the way there, and it becomes a descend on the way back. It helps after long day.
Ultimately, I want to try RAAM someday. I don't think I am ready now. I am not an endurance cyclist.