When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Our Right Lungs takes more air than our left lung.
194
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
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
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Your thumb is about the same size as your nose.
124