Question

How does the drug affect the human body ?

Hint:

Remember: Opioids = Depressants (Slow down).
Cocaine/Amphetamines = Stimulants (Speed up).

Answer 1

Step 1: Understanding the Concept:
Drugs work by mimicking or blocking natural signaling molecules in the body. Opioids have their own dedicated "Opioid Receptors."
Step 2: Detailed Explanation:
1. Receptor Binding: Opioids bind to receptors in the brain, spinal cord, and gut.
2. Analgesia: They are extremely effective at blocking pain signals, which is why morphine is used for post-surgical patients.
3. Systemic Depressant: They slow down the central nervous system. This results in reduced heart rate, slower breathing, and a feeling of "heavy" limbs.
4. Psychological Effect: They induce a state of euphoria and relaxation, which leads to high abuse potential and addiction.
5. Heroin Specifics: Heroin is a depressant that specifically slows down physiological body functions.
Step 3: Final Answer:
The drug acts as a sedative and depressant, significantly slowing down physiological body functions and reducing pain perception.