Persian scholar of medicine, Ibn Sina (980-1037), suspected that some diseases were spread by microorganisms; to prevent human-to-human contamination, he came up with the method of isolating people for 40 days. He called this method al-Arba'iniya (`the forty`).
Traders from Venice heard of his success and took this knowledge back to Italy. They called it 'quarantine', the forty in Italian.
This is where the word quarantine comes from!
|The strongest muscle in the body is the tongue!|
|The volume of blood pumped by the heart can vary over a wide range, from five to 30 liters per minute.|
|Cuddling (and other acts of love) help to heal physical wounds faster due to the release of oxytocin.|
|The human brain isn't fully functional for learning until after 10 AM, science has proved that schools begin way too early.|
|The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.|
|CT body scans expose the patient to the same amount of radiation as that experienced within a mile and a half of the Hiroshima atomic bomb.|
|Human hair and fingernails continue to grow after death.|
|The happier you are, the less sleep you require to function in everyday life. Sadness increases the urge to sleep more.|
|Sigmund Freud recommended cocaine as treatment for alcoholism, morphine addiction and depression.|