The direct effects of marijuana consumption are relaxation, pleasure, euphoria or anxiety, irritability, impaired motor coordination, dizziness, hallucinations, delusions. The sensations depend on the type of substance, dose, frequency of intake, duration of intake, and the person's genetic makeup.
The long-term effects of marijuana consumption are primarily the amotivational syndrome, i.e. a disorder in the sphere of the will. It manifests itself in the difficulty or inability to make decisions, lack of action, especially in setting goals and achieving them. What distinguishes Amotivational Syndrome from depression is lack of guilt. Depressed people suffer from a loss of energy. Marijuana users are convinced that they are coping well regardless of the degree of deterioration in their functioning. Some people loosen their relationships with their loved ones, friends outside the drug circle. It is characteristic to establish only emotionally shallow ties with other people, loneliness, a sense of emptiness and boredom.
The tendency to make risky, ill-considered decisions results, for example, in financial loss as a result of unfavorable transactions or loans, but also in more frequent HIV infection (among marijuana smokers the percentage of infections is higher than in the rest of the population).
As the duration of marijuana use increases, memory deterioration (short-term and operative), memory and learning deteriorate.