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.
18
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Foreign accent syndrome is a rare brain disorder which causes people to speak in a foreign accent involuntarily.
15
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
35,000 people in the U.S. will die from the flu annually.
6
10 seconds is the amount of time until unconsciousness after the loss of blood supply to the brain.
108
A man once sued his doctor because he survived his cancer longer than the doctor predicted.
74
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21