Recalling his earliest memory of the UK's first female prime minister, Mr Cameron spoke of her "brave and resolute" decision to send a task force to retake the Falkland Islands in 1982 - when he was a teenager.

BBC: UK Politics

Students in the other group spent that time reading an article about how memory works and learning new strategies for recalling material.

WSJ: How to Overcome Failure

Tully's firm is searching for a drug that would accomplish this by lowering the levels of memory-forming proteins in the brain centers involved in recalling emotional events.

FORBES: Oblivion in a Pill