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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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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
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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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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
10 weeks old human embryo
An image comparing the brain sizes of different species.
Human infants are like all other placental mammals, except they are born at a less developed state.
Psychoactive substances: (left) Psilocybin is obtained from a species of mushroom; (right) LSD is ...
Cast of a Fossil Dunkleosteus, with a human to illustrate scale
Sources of Variation in Traits Among Individuals of a Species