Smokers get ten times more wrinkles than non-smokers.
171
The human brain has the capacity to store everything that you experience.
4k
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
35,000 people in the U.S. will die from the flu annually.
6
The average sperm cell swims at 8 inches per hour.
4
Brain freeze is caused by the brain sensing the drop of temperature on your palate and increasing blood pressure in an attempt to save you from freezing.
14