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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.

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Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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The human body produces and destroys 15 million blood cells every second.

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The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

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Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

The Scopes Trial: William Jennings Bryan (right) represented the state of Tennessee, and Clarence Da The Scopes Trial: William Jennings Bryan (right) represented the state of Tennessee, and Clarence Da
Stand in a doorway and hook your fingertips on both sides about chest level or lower. Stand in a doorway and hook your fingertips on both sides about chest level or lower.
Performance of a delayed nonmatching-to-sample trial. Performance of a delayed nonmatching-to-sample trial.
Determining a good table height. Stand facing the table with your hands at your sides. Adjust the ... Determining a good table height. Stand facing the table with your hands at your sides. Adjust the ...
Apply effleurage and petrissage on top arm. Stand in front of recipient and hold her hand with one ... Apply effleurage and petrissage on top arm. Stand in front of recipient and hold her hand with one ...
Sulfur dioxide is a toxic gas, has a distinct, pungent odor, and contributes to acid rain and ... Sulfur dioxide is a toxic gas, has a distinct, pungent odor, and contributes to acid rain and ...
Video: Transcription - Introns and exons

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