Depression is nothing new, although we call it by a different name than they did centuries ago, and we have some new ways of treating it. But some of our greatest minds, like JFK, Dr. Martin Luther King Jr., and Abe Lincoln have been strengthened by their battles with depression.

The Backstory: The Horrifying Afterlife of Lincoln's Guests at Ford's Theater
10:11

The Backstory: The Secret NASA Test That Almost Ended the Space Race
08:04

The Backstory: Space Junk Falling From the Sky
08:43