There appears to be a negative correlation between the popularity of black metal and one's risk of premature death on a day to day basis.

This map is of metal bands in general, not just death metal.

The site that this data is sourced from, www.metal-archives.com, might be of interest to some non-metalheads. It is an excellent example of a impressively complete crowd-sourced archive and a testament to the huge nerd/collector/aspie population in metal.

There's something really wrong in Africa :P

OK, I'm moving to Finland.