In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
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 your DNA was stretched out it would reach to the moon 6,000 times.
256
The human brain is more active during sleep than during the day.
28
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Your fingernails grow faster in summer.
744