I could see a mechanism for this. Wife and I just had COVID, and I seem to have scored the long-form version. My lungs are so fucked up that walking to the bathroom and back gets my heart racing.

She scored a banging deal and a metal shed we need, went to take it apart yesterday. Pretty hard work disassembling the thing for an hour and a half in the heat.

Today my lungs are better than they’re been in weeks and I suspect that came from pumping air in and out.