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Green tea is able to stop the scent of garlic or onion from causing bad breath.

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There are 20 feet of blood vessels in each square inch of human skin.

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

A male American redstart, Setophaga ruticilla. A male American redstart, Setophaga ruticilla.
Structures of the endocrine system. Structures of the endocrine system.
Procedures and Diagnostic Tests Related to the Integumentary System Procedures and Diagnostic Tests Related to the Integumentary System
Conducting system of the heart. Conducting system of the heart.
The Central and Peripheral Nervous System The Central and Peripheral Nervous System
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

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