Human Facts

93 facts tagged with Human Facts

There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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.
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
Early American humans hunted car-size armadillos and used their shells for houses.
The human sigh acts as a physiological reset button.
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
In one day, adult lungs move about 10,000 litres of air.
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
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.
Our brains have a negativity bias and will remember bad memories more than good ones.
The average sperm cell swims at 8 inches per hour.
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
The human brain is more active during sleep than during the day.