NOVA Wonders What's Living in You?

Whether they make you fat, fart, or freak out, microbes play a central role in your life. Right beneath your nose—on your face, in your gut, and everywhere in between—trillions of bacteria, viruses, and fungi are so abundant in your body, they outnumber your human cells. But these aren’t just nasty hitch-hikers. Many are crucial to your survival.

Where to watch

You cover 0/985 episodes +22 with the plan · 2%

Your services

With the plan

Not covered

PBS

Subscription

964/985

Also available on 1

• 

  DirecTV On Demand

  Subscription

  827/985

  Watch

Every episode is already streaming. Subscribe only while you're watching.

985 episodes · subscribe while you watch, cancel anytime

See your month-by-month plan → Track