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Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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The relation between the physical and perceptual dimensions of sound. The relation between the physical and perceptual dimensions of sound.
Video: Ionic bonds - role of ions in the body

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