PBS Anywhere

Providing Support for PBS.org

It’s Okay to Be Smart

We're Mainly Microbe: Meet Your Microbiome

Video duration: 3:53

Ever not felt completely like yourself? There's a good reason for that. Because a large part of you isn't actually you. Our bodies are home to ten times as many microbes as human cells. We are walking ecosystems, each of us home to thousands of different species on and inside of us. Meet your microbiome!

Episodes of It’s Okay to Be Smart89

Video thumbnail: It’s Okay to Be Smart What Color is the Universe?

It’s Okay to Be Smart

What Color is the Universe?

Hint: It's not black

2:51

What Color is the Universe?

2:51

Video thumbnail: It’s Okay to Be Smart Your #ScienceWoman Heroes

It’s Okay to Be Smart

Your #ScienceWoman Heroes

We teamed up with Amy Poehler's Smart Girls to ask you who your #sciencewoman heroes are.

4:46

Your #ScienceWoman Heroes

4:46

Video thumbnail: It’s Okay to Be Smart How Many Heartbeats Do We Get?

It’s Okay to Be Smart

How Many Heartbeats Do We Get?

Science really gets my heart going…

4:27

How Many Heartbeats Do We Get?

4:27

Video thumbnail: It’s Okay to Be Smart 5 Weird Involuntary Behaviors Explained!

It’s Okay to Be Smart

5 Weird Involuntary Behaviors Explained!

Yawns, hiccups, twitchy eyes (and more) explained!

4:50

5 Weird Involuntary Behaviors Explained!

4:50

See all Episodes