Adverse effects of heroin on the brain
Blood pressure, arousal and respiration are controlled by the opioid receptors in the brain. So when heroin enters the brain, it affects these unconscious activities. How else does heroin affect the brain? We review here.
Most serious effects of heroin on the brain

- addiction
- delirium
- dysphoria or general dissatisfaction with life
Serious effects of heroin on the brain
- cravings
- disorientation
- emotional instability
- impaired thinking
- lying
- unstable mood
Basic effects of heroin on the brain
- drowsiness
- hyperactivity followed by fatigue
- not able to concentrate
- paranoia
- problems sleeping
- slurred speech
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