On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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The human body produces and destroys 15 million blood cells every second.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
brain development in the human embryo
one month old embryo
The human embryo
Neuron from Chicken embryo
In situ hybridization of a zebrafish embryo 48 hours after fertilization
Visualization of gap gene expression in a Drosophila embryo
