Yawns are more contagious among people with closer relationships.
163
The human eye blinks an average of 4,200,000 times a year.
233
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
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.
26
The average sperm cell swims at 8 inches per hour.
4
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
It has been scientifically proven that stroking a cat can lower one's blood pressure!
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