Your stomach gets a new lining every few days to avoid digesting itself.

Your brain can store the equivalent of millions of gigabytes of information.

Fact #1873 · Human Body

The human nervous system can send signals at over 200 miles per hour.

Fact #2642 · Human Body

Stress hormones prepare the body for a fight-or-flight response.

Fact #959 · Human Body

Roughly 80% of people will experience back pain at some point in their lives.

Fact #2777 · Human Body

Your body produces about 300 billion new cells every day.

Fact #2463 · Human Body

The human brain continues developing into your mid‑twenties.

Fact #2476 · Human Body

Red blood cells complete a full circuit of the body in about 20 seconds.

Fact #3272 · Human Body

Your corneas receive no blood supply — they get oxygen directly from the air.

Fact #3275 · Human Body