Indeed, charts like this may be informative if you have a pretty average lifestyle, but all those people that die from smoking and heart disease would have eventually died from one of the other risk factors, had they continued on.

Recently I read that something like 70+% of all men past a certain age had nascent cancers when they died, regardless of whether cancer killed them. To me that leaves cancer my #1 fear above all others (ignoring "events", like being hit by a car), since our generation is going to live much longer, and thus be hit by even more cancer.