Being dependent on something (or addicted to something) means that you have no control over doing, taking or using something harmful.
Addiction can occur when a person repeatedly uses or misuses certain substances (which can include alcohol, street drugs or prescription medication) for a long period of time. You can also get addicted to an act, such as gambling, shopping or having sex.
If you have become dependent on a drug, you may:
This is found in tobacco products and increases dopamine in parts of the brain's reward system up to eight times its normal level.
This affects many systems in the brain and increases GABA and dopamine production.
These are prescribed to help you sleep or treat anxiety, and they increase GABA activity in the brain. There is diasepam, lorasepam and alprasolam are some of the most common benzodiazepines.