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Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Did you know?
Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
Did you know?
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.