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Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Location and cellular arrangement of the adrenal glands. Location and cellular arrangement of the adrenal glands.
Salt glands as an adaptation for marine life. Salt glands as an adaptation for marine life.
The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland. The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland.
Structures of the endocrine system. Structures of the endocrine system.
Endocrine Glands/Organ Functions Endocrine Glands/Organ Functions
Human Thyroid and Parathyroid Glands Human Thyroid and Parathyroid Glands
Video: Major Elements in Biological Molecules: Nucleic acids

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