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Author Question: Heroin first became popular among opioid abusers in the 1970s, due to returning Vietnam veterans. ... (Read 43 times) |
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
The average office desk has 400 times more bacteria on it than a toilet.