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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
Did you know?
Women are 50% to 75% more likely than men to experience an adverse drug reaction.