Drugs have been used down the ages for pleasure, to alter the state of consciousness, or for relief from pain and anguish. [ Added to these are inquisitiveness, curiosity and the need for change and experimentation.
The initial use of a drug for pleasure leads to repeated use and reinforcement. Soon, addiction develops and withdrawal symptoms appear on not taking the drug. Then follows continuous use to experience the pleasure or to avoid the pain of withdrawal.The psychological and social reasons for substance abuse are many, such as adverse experiences during childhood, mental illness, discord, neglect, violence, stressful family life, changing social values, breakdown of traditional role models, identity crisis and identity diffusion. Or it might just be a desire to relieve monotony, pain, tension or stress. Easy availability of drugs, peer pressure and sensation seeking behavior result in experimentation with drugs.
Research has revealed the mode of action of drugs and alcohol in the body to be through the brain's neuro-chemicals. Endogenous morphine-like substances (endorphins are chemicals that resemble morphine) and specific receptor binding sites for different drug molecules have been identified in the nervous system. This means that our bodies react to drugs because we are biologically so predisposed. ] (More)