I've always put my faith in LOTS of garlic, red wine and extra virgin............olive oil!
Don't forget the 'finite heartbeat theory'. Big G (or Big A if you happen to be a muslim) issues you with a fixed number of heartbeats. You can use them up quickly by rushing around playing rugby (or mincing around playing kevball) in your latter years - or potter about using them up slowly by involving yourself only in more gentlemany pursuits such as SVAS!