Sorry to hear about your dad. This is a cautionary tale and thank you for sharing it. The truth, i think, is that if we do too much Yang exercise, nature will find a way to balance things out. If we do extreme Yang exercise for too long, then we are in danger of Nature pushing us to extreme Yin (death) or, if we are lucky, just shy of extreme Yin which will mean we are bedbound for extended periods of time. I know I have made this article funny, but there is quite a serious message in there somewhere. People tend not to read serious self-help type articles though. They can be a bit preachy and boring if I try to write them! A🙏💚