It takes approximately 12 hours for food to entirely digest.
93
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
On average, there's 100 billion neurons in the human brain.
83
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The human brain has the capacity to store everything that you experience.
4k
Yawns are more contagious among people with closer relationships.
163