When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Yawns are more contagious among people with closer relationships.
163
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
The human brain has the capacity to store everything that you experience.
4k
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197