What would happen if you didn't sleep?

In the United States, it's estimated that 30 percent of adults and 66 percent of adolescents are regularly sleep-deprived. This isn't just a minor inconvenience: staying awake can cause serious bodily harm. Claudia Aguirre shows what happens to your body and brain when you skip sleep. [Directed by TED-Ed, narrated by Addison Anderson, music by Carlos Palomares].