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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
The longest a person has survived after a heart transplant is 24 years.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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