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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
Did you know?
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.