There may be no statistical significance to this, but doesn’t it seem like a lot of rock musicians aren’t making it out of their 50s? Just this week, Billy Preston died at 59 and the last Grateful Dead keyboard player passed away at 51. In recent years we’ve lost George Harrison, Joe Strummer, three of Ramones, and John Entwistle. And those are just the ones I can think of off the top of my head.
Lifestyle can play a part, sure. Harrison smoked and got cancer; Entwistle had cocaine in his system when he was found dead of a heart attack. Still, it seems rockers die young even when they’re, well, not so young anymore.