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Understanding Drugs and their Effects: Tolerance, Dependence, and Psychoactive Substances

This article explores the concept of drug tolerance and the psychological and physical dependence that can result from regular drug use. It also discusses the withdrawal symptoms experienced when discontinuing drug use. The different categories of psychoactive drugs - depressants, stimulants, and hallucinogens - are explained, along with their specific effects on the body. Examples of depressants, such as alcohol, barbiturates, and opiates, are provided, highlighting their potential dangers and consequences. The article also covers stimulants like amphetamines and cocaine, as well as hallucinogens like LSD and marijuana, including their unique characteristics and potential risks.

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Understanding Drugs and their Effects: Tolerance, Dependence, and Psychoactive Substances

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  1. DRUGS

  2. Drug Tolerance • The diminishing effect with regular dose of the same dose. Psychological v. Physical dependence

  3. Withdrawal

  4. Psychoactive Drugs • Depressants: slow down body functions. • Stimulants: arouse body functions. • Hallucinogens: distort perceptions or evoke sensation without sensory input.

  5. Depressants Alcohol • Slows down sympathetic nervous system. • Disrupts memory processing. • Reduces self-awareness. • Involved in up to 60% of all crimes. • The worst drug from a macro perspective out there.

  6. Depressants Barbiturates • Tranquilizers • Taken to sleep (but reduce REM sleep). • Taken with other drugs- you can get a synergistic effect.

  7. Depressants Opiates • Heroin and morphine • Addition comes fast and the withdrawal symptoms are bad

  8. Stimulants • Amphetamines (Speed) • Cocaine • Crack • “the crash”

  9. Hallucinogens LSD (Acid) • Can cause PTSD and schizophrenia. • Geometric patterns

  10. Hallucinogens Marijuana • THC (Tetrahydrocannabinl) • Difficult to classify • Can amplify senses • Is it addictive?

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