Drug addiction and drug abuse, chronic or habitual use of
any chemical substance to alter states of body or mind for
other than medically warranted purposes. Addiction is more
often now defined by the continuing, compulsive nature of the drug use despite physical and/or psychological harm to
the user and society and includes both licit and illicit drugs,
and the term “substance abuse” is now frequently used
because of the broad range of substances (including alcohol
and inhalants) that can fit the addictive profile.
Psychological dependence is the subjective feeling that the
user needs the drug to maintain a feeling of well-being;
physical dependence is characterized by tolerance (the need
for increasingly larger doses in order to achieve the initial
effect) and withdrawal symptoms when the user is abstinent.
There are a lot of effects of drug addiction to the economy,
society, and family. Drug addiction affects individual’s
physical and mental health. Drug addicts are burden for a
family and society. It is a great challenge for all nations of
the world to prevent drug addiction
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