It would appear that physical exertion increases the chance of heart failure, since I've seen many instances of athletes collapsing on the field. And now think, this vaccine is also going into servicemen in our armed forces. If these vaccinated servicemen go into combat with something that could potentially cause their hearts to fail from exertion, then that is a serious handicap to our military's effectiveness. If we want to go deeper, perhaps these vaccines are being pushed on our armed services to do just that, cripple them. If China is ultimately pulling the strings, this would give them a distinct advantage in the coming war, which they are preparing for.