On average, there's 100 billion neurons in the human brain.
83
When you take a step, you are using up to 200 muscles.
886
Chocolate, sex, and laughter are all important for a healthy brain.
37
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
The average person's skin weighs twice as much as their brain.
131
Most dreams last only 5 to 20 minutes.
79