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 Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The world's shortest man measures only 21.5 inches.
73
It takes approximately 12 hours for food to entirely digest.
93
Yawns are more contagious among people with closer relationships.
163
Enamel is hardest substance in the human body.
61
Pain occurs when sounds are above 130 db.
124
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99