Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
The human eye blinks an average of 4,200,000 times a year.
233
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.
15
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Poor eyesight (myopia) is associated with higher IQ.
232
The human sigh acts as a physiological reset button.
23
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161