When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
The average person's skin weighs twice as much as their brain.
131
On average, there's 100 billion neurons in the human brain.
83
You forget 90% of your dreams.
256
Pain occurs when sounds are above 130 db.
123
Your heart will pump about 212 million liters in its lifetime.
26
Our brains have a negativity bias and will remember bad memories more than good ones.
15