Thyroid conditions may make getting pregnant impossible.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
Math Modelling
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
What’s the Secret of Math Success?
A simple pendulum of length 2.5 m m makes 5.0 complete swings in 16 s s . What is the ...