Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
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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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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th
A mound of buffalo skulls. In 1870 an estimated 30 million buffalo roamed the plains; by 1900 there
When the voltage drop reaches approximately 1.20 volts, the PCM turns on a transistor. The ...
Example of an approximately 37,500 probespotted oligo microarray.
Estimated times of divergence of human and Neanderthal genomic