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Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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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.

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If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

The endocrine control of spermatogenesis. The endocrine control of spermatogenesis.
The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th
Communicating Effectively with the Elderly Communicating Effectively with the Elderly
The human hypothalamus (in color) in relation to the optic chiasm and the pituitary gland. The human hypothalamus (in color) in relation to the optic chiasm and the pituitary gland.
Summary of posterior pituitary hormone Summary of posterior pituitary hormone
Control of Homeostasis: Positive Feedback Control of Homeostasis: Positive Feedback
Video: Egg and Sperm Formations in Animals Animation

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