We're all gonna die!

Oh, and smoking isn't necessarily going to kill you off at 50. The world's oldest woman ever to have lived (as verified by the GBR) was Jean-Marie Calmont - a French woman who smoked all her life until 4 years before her death due to the fact that her eyesight was too poor and she was embarrased to ask for a lighter.
She died in 1997 at the grand old age of 122 years old.