I had a triple bypass at age 42. recovered and went back to work. Six months later had two stents, three months after that one more stent. At 51 I work, I hike and yes I sail. I look at it like this, I am better off than someone who has never had anything done. I know what the signs feel like, I am aware of my limits and I carry medication to get me out of a mess. When I hike I carry a GPS locator my wife bought for me.