A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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There are approximately 3 million unintended pregnancies in the United States each year.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
A molecular model showing chromosome territories in the cell nucleus of humans
Blood Stem cell classification
Squamous cell carcinoma.
The Economics of Money, Banking and Financial Markets, Business School Edition