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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.