A new study investigated the mortality and mental health correlates of the iconic Bulletin of the Atomic Scientists' Doomsday Clock.

Results indicate that the closer the Doomsday Clock ticks to midnight, the higher the rates are for mortality specific to ...

(CNN) — Seventy-eight years ago, scientists created a unique sort of timepiece — named the Doomsday Clock — as a symbolic attempt to gauge how close humanity is to destroying the world.