![]() ![]() ![]() ġ point: Posthypnotic suggestions have been used by therapists to help people overcome health issues. Some of the changes mentioned in the text are: pupil constriction, slower breathing, lethargy, and eventually, painful withdrawal symptoms as the brain loses its ability to produce "natural" endorphins. Pages 246-247 1 point: Drugs categorized as opiates cause a range of biological changes in the body. The brain's chemistry changes when some psychoactive drugs are repeatedly ingested, interfering with the brain's ability to produce or use some neurotransmitters. Tolerance occurs because of biological changes in the brain. Pages 228-229 1 point: After repeated use of some drugs, humans develop tolerance for those substances, meaning that increasing dosages of those drugs are needed to produce the same effect. Brain waves and breathing become irregular, heart rate increases, and eyes dart back and forth beneath the eyelids. ![]() These biological changes include *lack of energy, falling asleep during the day, changes in appetite, suppression of the immune system, decreased focus and attention, and depressed mood.* Pages 234-237 1 point: The REM stage of the sleep cycle is associated with dramatic biological changes. 1 point: Sleep deprivation causes a wide range of biological changes in the body, all associated with decreased performance while awake. ![]()
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