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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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?
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Did you know?
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.