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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Fraternal twins share about 50 percent of their segregating genes. Fraternal twins share about 50 percent of their segregating genes.
Regular staff meetings increase the efficiency of the medical office staff. Regular staff meetings increase the efficiency of the medical office staff.
Hold hand around thumb and little finger and apply broadening strokes across the metacarpals. Press ... Hold hand around thumb and little finger and apply broadening strokes across the metacarpals. Press ...
Turn the baby over and end with passive touch on the head. Gently hold the baby’s head and look ... Turn the baby over and end with passive touch on the head. Gently hold the baby’s head and look ...
Approximately 40 percent of farmers in the United States are 55 years old or older Approximately 40 percent of farmers in the United States are 55 years old or older
The amino acid lysine has the percent composition 49.3% C, 9.59% H, 19.2% N, and The amino acid lysine has the percent composition 49.3% C, 9.59% H, 19.2% N, and
Video: Renin/Angiotensin (water gain from urine & Na ion and water reabsorption)

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