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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

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Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Snout and mouth of sand tiger shark, showing protruding teeth and small eyes Snout and mouth of sand tiger shark, showing protruding teeth and small eyes
Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i
Sand Castle Sand Castle
Snap-ring pliers are also called lock-ring pliers, and they are designed to remove internal and ... Snap-ring pliers are also called lock-ring pliers, and they are designed to remove internal and ...
The upper intake manifold, often called a plenum, attaches to the lower intake manifold. The upper intake manifold, often called a plenum, attaches to the lower intake manifold.
Characteristics of Subatomic Particles Characteristics of Subatomic Particles
Video: Covalent bonds - role in the body

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