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Drugs effects on nerve transmission - Coggle Diagram
Drugs effects on nerve transmission
Alcohol is a psychoactive drug and acts on the brain hence, creating changes in behaviour
Other common drugs similar to alcohol is: tobacco, caffeine, marijuana, cocaine, heroin, hallucinogens and prescription drugs
Alcohol has an immediate and short-term effect on the biology of the brain: health, well-being and behaviour (effects vary by dosage and the number of times of consumption)
Risk of dependency is high
chemical substances that change a person's mental state by affecting the way the brain and nervous system work.
Affect the central nervous system by influencing the transmission of nerve impulses in the brain
Behaviour is changed
Decreased inhibition: Leads to riskier behaviour and more consumption
Leads to poor decision-making leading to impaired driving, increased aggression, and unwanted or unprotected sex.
Affects cognition and can reduce a person’s ability to learn and work
How psychoactive drugs are classified:
Likelihood to cause addiction
Chemical structured
Common effects
By U.S. Drug Enforcement Administration schedules I-V, which classify these drugs by the potential for abuse
Types of psychoactive drugs:
Stimulants: Heightened alertness, greater energy, excitability, improvement in mood that can reach euphoria, and bodily responses such as increased heart rate and blood pressure.
Depressants: Effects include reduced feelings of tension, relief of anxiety, and muscle relaxation. Excessive use can have effects that may include clammy skin, shallow breathing, a rapid and weak pulse, coma, and death
Opioids: Almost all the drugs in this group are derived from morphine. Examples of their effects include pain relief, drowsiness, euphoria and confusion
Hallucinogens: Examples of effects include paranoia, hallucinations, erratic behavior, and increased blood pressure and heart rate. Effects of excessive use may include problems thinking and speaking