Answer:
Drug dependency influences the way how the brain operates and affects the physical aspects of the human body.
Explanation:
The more drug addict an individual becomes the more he or she becomes reliant upon them to deal with daily circumstances. As a consequence, long-term substance addiction can cause anxiety, mood swings, depression, paranoia, aggressive behavior, hallucinations, and uncertainty in daily decision making.
The physical effects of drug addiction differ by the substance used drug but are usually observed across all body systems for example hepatitis and other diseases, cardiac complications, respiratory disorders such as lung cancer, stomach pain, vomiting, constipation, diarrhea, loss of appetite, kidney and liver damage and many more problems specific to the drug substance.
