I have a question concerning Valsalva. It doesn’t really have to do with stoke and it may/may not have been addressed in previous articles; but how does Valsalva affect a bicuspid aortic valve? My dad has BAVD (bicuspid aortic valve disease) and I believe he still needs to be training (to GRADUALLY strength his heart and the rest of his 63yo body like is done on the NLP) but I need legitimate info to share (not just my opinion) so he (and my mom-the one with the real concern) can make an informed decision about his training.