The human heart creates pressure.. Amazing Facts

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It takes about 20 seconds for a red blood cell to circle the whole body.
It's been proven that people can lessen reactions to allergies by laughing.
Laughing lowers levels of stress hormones and strengthens the immune system.
Six-year-olds laugh an average of 300 times a day.Adults only laugh 15 to 100 times a day.
The human heart creates enough pressure while pumping to squirt blood 30 feet!!
Credit goes to: subodh nagwekar