When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
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
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
The human body contains over a billion miles of DNA.
147