You're standing at a bus stop, waiting for a ride that seems like it will never come. At first, you're hopeful that it will be here any second. But as the minutes laggardly drag on, doubt creeps in.

New research reveals that sleep deprivation hampers the brain’s ability to suppress intrusive memories, a process critical for mental health.

A new study has shown that sleep deprivation can inhibit the brain's ability to suppress unwanted memories and intrusive thoughts.