The advice that my cardio gave me was to walk as much as possible, as I found the strength, and now the aim is a minimum of one hour at a stretch per day. However, I was warned against overdoing things, and especially am I not to push wheelbarrows. Which was a bugger, because each winter I had to move a ton of wood from the car park to the apartment up to three times a winter. When that was banned, I had to pay the wood delivery guy to do that, and as we know, time is money...
Of course, I assume that the different types of heart problem have their own limitations on how life can be lived, so it doesn't make sense for me to imagine everybody has the same sort of restrictions. If anything, the worst remaining thing of which I'm aware is the beta blocker thing: I had to be reduced to the lowest input because it was cutting back on pressure and I was fainting sometimes at lunch, as the blood pump had to feed blood to the stomach to help digestion, thus cutting down on the supply it could pump upstairs to the brain. On top of that, betas are in the drops to reduce pressure in my eyes... all in all, nothing comes to bite your ass by itself - it always brings something to watch its back and deliver double whammies!
But, life goes on, and it's up to us to make the best of it we can.
Rob