Question: What Are the Physical Signs of Abuse or Addiction?
Answer: The physical signs of abuse or addiction can vary depending on the person and the drug being abused.
For example, someone who abuses marijuana may have a chronic cough or worsening of asthmatic conditions. THC, the chemical in marijuana responsible for producing its effects, is associated with weakening the immune system which makes the user more vulnerable to infections, such as pneumonia.
Each drug has short-term and long-term physical effects, stimulants like cocaine increase heart rate and blood pressure, whereas opioids like heroin may slow the heart rate and reduce respiration.
For a look at the possible health effects of various drugs see Drugs of Abuse.
Back to: Drug Abuse FAQ
