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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Asthma cases in Americans are about 75% higher today than they were in 1980.
Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.