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Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

dental tools dental tools
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Wild chimpanzees make and use simple tools to obtain food, learning tool making from one another. Wild chimpanzees make and use simple tools to obtain food, learning tool making from one another.
Kara Walker, Insurrection! (Our Tools Were Rudimentary, Yet We Pressed On). Kara Walker, Insurrection! (Our Tools Were Rudimentary, Yet We Pressed On).
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Video: Enzyme structure - Properties of enzymes

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