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Did you know?

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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Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Environmental factors restricting the distribution of Chthamalus to the upper intertidal zone. Environmental factors restricting the distribution of Chthamalus to the upper intertidal zone.
The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ... The WISER entry for hydrogen cyanide (bottom). Useful information includes detailed health ...
Area of the hypoxic in The Gulf of Mexico’s “Dead Zone” Area of the hypoxic in The Gulf of Mexico’s “Dead Zone”
Intertropical convergence zone Intertropical convergence zone
Deep Pelagic Zone: Giant siphonophore Deep Pelagic Zone: Giant siphonophore
Remains of an abscission zone between a leaf petiole and twig of horse chestnut (Aesculus hippocasta Remains of an abscission zone between a leaf petiole and twig of horse chestnut (Aesculus hippocasta
Video: Hormones and the menstrual cycle Animation

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