If you unfolded your brain, it would cover an ironing board.
42
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
The right lung takes in more air than the left.
30
Your heart rate can rise as much as 30% during a yawn.
69
The human brain has the capacity to store everything that you experience.
4k
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Every day, the average person swallows about a quart of mucous.
5