It’s not a pre-existing condition, assuming the doctors that believe it was commotio corditis are correct. Basically it results from a hit happening at a very specific time in his heart beat. If it was that then the likely hood of it happening to him again are about the same as being struck by lightning multiple times.

All that said he definitely won’t be playing again if there is damage to his heart, lungs, or brain as a result of the situation.

Wood stoves have always been common in Maine, might see more generators but the issue with those is cost. This has been a problem in Maine as long as I’ve been alive. Heavily wooded landscape does not bode well when there are high winds or lots of snow.