We are all addicted to something or other. Some are addicted to money making, some are traveling, and some are addicted to some sort music or art. However, in scientific term addiction can be defined as dependent on some psychoactive substance. That substance can be alcohol, tobacco and different types of drugs. These substances cross the barrier of brain-blood and temporary alter the chemical setting of brain.

Nowadays, psychology professionals and even common men think in a different way about the definition of addiction. Anything that makes people to depend on that particular thing psychology is regarded some sort of addiction. There are many thing such as gambling, food, sex, internet, video games, exercise, spiritual obsession and others can cause a psychological dependence and produce a sense of guilt, shame, fear, hopelessness, failure, rejection, anxiety, and humiliation. These symptoms in a later stage result into depression and even epilepsy.

According to the current Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), substance dependence is defined as:

"When an individual persists in use of alcohol or other drugs despite problems related to use of the substance, substance dependence may be diagnosed. Compulsive and repetitive use may result in tolerance to the effect of the drug and withdrawal symptoms when use is reduced or stopped. This, along with Substance Abuse is considered Substance Use Disorders.

Types Of Addictions

There are many types of substance addiction such as:

Alcohol dependence
Opioid dependence
Sedative, hypnotic, or anxiolytic dependence (including benzodiazepine dependence and barbiturate dependence)
Cocaine dependence
Cannabis dependence
Amphetamine dependence (or amphetamine-like)
Hallucinogen dependence
Inhalant dependence
Polysubstance dependence
Phencyclidine (or phencyclidine-like) dependence
Other (or unknown) substance dependence
Nicotine dependence