I'm a fan (and you should be too) because... Slayer saved my life, especially their album "World Painted Blood".
As a chronic pain patient I sadly have to deal with much pain every day (for over 2 years now), also I must take many medics and painkillers cause of that but nothing was able to give me as much relief as if Iam listening to Slayer and "World Painted Blood" (also Sepultura "Kairos", Overkill "The Electric Age" and After All "Dawn of the Enforcer" are helping me).
It can not take my health issues away but it helps when nothing else helps anymore.
Thank you guys... for the music (SLAYER) = my medic!