RIP
Hmmm... in this interview he mentions recently getting over pneumonia, and just before he passed his partner mentioned the same thing had happened recently. So a bit of bro science logic - based on zero evidence or research of course - might say:
1 While pneumonia can affect all ages, for younger guys like him to have suffered it has to be much less common - so to get it twice in a few years
without something serious in the background must be an even rarer occurrence
2 'Congestive' heart failure has, among other, symptoms of shortness of breath, dizziness, etc. due to the build up of fluid in the lungs - hence the title. So maybe it's possible this could be mistaken for pneumonia. Also, if taking stims this could be masked somewhat as most (all?) of them are vaso-dilators (at least the good ones are)
I know a lot of us have a BP cuff at home, but how many of us (honestly) have considered a VO2 max test at any point..?
They look like a lot of fun!

