Human gestation is 280 days from last menstrual period — but true conception to birth is about 266 days.

The human body has over 600 muscles.

Fact #160 · Human Body

The human eye adapts to darkness by increasing light sensitivity.

Fact #899 · Human Body

Your bones are stronger than steel of the same weight.

Fact #2343 · Human Body

The liver can regenerate itself — as little as 25% of the liver can regrow into a full organ.

Fact #3276 · Human Body

The human body can survive about 3 days without water.

Fact #3064 · Human Body

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

Fact #1873 · Human Body

Your brain enables thought.

Fact #2405 · Human Body

Humans are the only animals with chins — no other primate or mammal has one.

Fact #3502 · Human Body