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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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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.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

(A) Bronchopneumonia with localized pattern. (B) Lobar pneumonia with a diffuse pattern within the l (A) Bronchopneumonia with localized pattern. (B) Lobar pneumonia with a diffuse pattern within the l
Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material
Tobacco smoke and radon are the most dangerous indoor pollutants in the industrialized world Tobacco smoke and radon are the most dangerous indoor pollutants in the industrialized world
Tobacco Mosaic Virus Tobacco Mosaic Virus
Infected Tobacco Leaves by a Virus Infected Tobacco Leaves by a Virus
Corolla length in tobacco Corolla length in tobacco
Video: Introduction to Tuberculosis

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