I don't want this to be mis understood but there is another cause that devastates young athletes and is frequently listed as a heart attack on death notices. I know this because it happened to my 29 year old neighbor. It is not discussed openly but happens more frequently than you would expect. Cocane use or abuse does cause heart failure as do some other drugs, legal or illegal. Just so everyone is aware that some of these deaths are not out of the blue and do have other contributing factors that you may never know about. This should not be construed as condemnation of anyone, just informative. Here is an excerpt from a news page about someone you might recognize....
During the early evening of 14 February 2004 Pantani was found dead at a hotel in Rimini, Italy. An autopsy revealed he died of a cerebral edema and heart failure, and a later coroner's inquest revealed that this was brought on by acute cocaine poisoning.
Ray Homiski
Elizabeth, NJ