Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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There are more sensory neurons in the tongue than in any other part of the body.

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Thyroid conditions may make getting pregnant impossible.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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