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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.