After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
By weight, Bone is five times stronger than steel.
417
Human hair and fingernails continue to grow after death.
7
Your thumb is about the same size as your nose.
124
Your heart will pump about 212 million liters in its lifetime.
26
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
If the human eye was a digital camera, it would have 576 megapixels.
25