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Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

The functioning of the heart valves and blood flow. The functioning of the heart valves and blood flow.
Signs and symptoms of chronic liver failure. Signs and symptoms of chronic liver failure.
Heart Heart
Heart Sounds Heart Sounds
Location of the heart in the chest cavity. Location of the heart in the chest cavity.
Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults. Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults.
Video: Types of synapses - electrical & chemical

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