1. consciousness
    your awareness of everything that is going on around you and inside your own head at any given moment, which you use to organize yout behavior.
  2. waking consciousness
    which their thoughts, feelings, and sensations are clear and organized, and they feel alert.
  3. altered state of consciousness
    occurs when there is a shift in the quality or pattern of your mental activity.
  4. REM (rapid eye movement)
    stage of sleep in which the eyes move rapidly under the eyelids and the person is typically experiencing a dream.
  5. non REM (NREM) sleep
    any of the stages of sleep that do not include REM.
  6. night terrors
    relatively rare disorder in which the person experiences extreme fear and screams or runs around during deep sleep without waking fully.
  7. sleep walking
    occurs during deep sleep, an episode of moving around or walking around in ones sleep.
  8. insomnia
    the inability ti get to sleep, stay asleep or get a good wuality of sleep.
  9. sleep apnea
    disorder in which the person stops breathing for nearly half a minute or more.
  10. narcolepsy
    sleep disorder in which a person falls immediatly into REM sleep during the day without warning.
  11. hyonosis
    state of consaciousness in whcih the person is especially suseptible to suggestion.
  12. stimulants
    drugs that increase the functioning of the nervous system
  13. depressants
    drugs that decrease the functioning of the nervous system.
  14. hallucinogenics
    drugs including hallucinogens and marijuana that produce hallucinations or increased feelings of relaxation and intoxication.
  15. nicotine
    the active ingredient in tobacco
  16. caffeine
    a mild stimulant found in coffee, tea and several other plant based substances
  17. alcohol
    the chemical resulting from fermentation or distillation of various kinds of vegetable matter.
  18. marijuana
    mild hallucinogen derived from the leaves and flowers of a particular type of hemp plant
  19. physical dependence
    condition occurring when a persons body becomes unable to function normally without a particular drug.
  20. withdrawal
    physical symptoms that can include nausea, pain, tremors, crankiness, and high blood pressure
  21. psychological dependence
    the feeling that a drug is needed to continue a feeling of emotional or psychological well-being.
  22. drug tolerance
    as a person continues to use the drug, larger and larger doses of the drug are needed to achieve the same effects of the drug.
  23. circadian rhythm
    a cycle of bodily rhythm that occurs over a 24 hour period
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