Heroin Addiction

What Heroin Does To The Body

An opioid that hijacks the brain's reward pathway.

Heroin belongs to a class of drugs that directly activate the brain's reward pathway, the system responsible for reinforcing behavior and forming memory.

The drug binds to opioid receptors and enhances dopamine release in the nucleus accumbens — the brain's "pleasure center." Repeated use creates long-term changes in the nucleus accumbens that affect how it responds to glutamate, the brain's primary excitatory neurotransmitter, contributing to persistent drug cravings.

Causes

Why heroin addiction develops.

Addiction results from multiple factors rather than a single cause. Genetics play a role — individuals with first-degree relatives who struggle with addiction face a higher risk. Environmental exposure, including regular use by family and friends, also significantly influences susceptibility. Additional contributing factors include peer pressure, low socioeconomic status, and inadequate parental guidance.

Signs & Symptoms

Recognizing heroin use.

Physical signs

• Drowsiness, nodding off
• Sleepy eyes
• Constricted pupils
• Slow breathing
• Runny nose
• Flushed skin
• Vomiting
• Scratching
• Constipation
• Nausea
• Slurred speech
• Loss of appetite
• Dry mouth

Behavioral signs

• Euphoria
• Extreme relaxation
• Sedation
• Reduced anxiety
• Mood swings

Long-Term Effects

The physical and mental toll of long-term use.

• Damaged teeth and gums
• Persistent itching
• Weakened immune system
• Cold sweats
• Respiratory illness
• Muscular weakness, partial paralysis
• Menstrual disturbance
• Inability to achieve orgasm
• Loss of cognitive function
• Depression
• Introversion
• Facial pustules
• Insomnia
• Tuberculosis
• HIV/AIDS
• Hepatitis
• Coma
• Death

Withdrawal

What withdrawal from heroin looks like.

Heroin withdrawal usually begins 6–12 hours after the last use. It typically peaks within 1–3 days and subsides after 5–7 days. Some heavy users may experience post-acute withdrawal syndrome — weeks to months of lingering symptoms.

Physical & mental signs

Cravings, restlessness, chills, agitation, insomnia, sweatiness, nausea and vomiting, muscle or bone pain, depression, diarrhea, mood swings, aches and pains, a runny nose, tearing up, hair standing on end, and fever.

Overdose signs

Constipation, nausea and vomiting, GI tract spasms, low blood pressure and a weak pulse, lack of responsiveness even to painful stimuli, constricted pupils that don't react to light, cyanosis (blue-tinted fingernails and lips), extreme sedation that's difficult to wake from, coma, seizures, and respiratory arrest. Heroin overdose is a medical emergency.

Treatment At Two Dreams

How we treat heroin addiction.

Two Dreams treats heroin addiction through our 3-7-3 Model — three treatment phases (Coming In, Looking In, Looking Out), seven wellness dimensions (abstinence, peer support, professional guidance, medication review, nutrition, exercise, and ritual), and three outcomes we help each client establish and sustain: mental peace, physical well-being, and personal productivity.

Treatment integrates 12-step philosophy with behavioral therapies, motivational enhancement, psychiatric care, daily process groups, individual counseling, physical activity, nutritional guidance, journaling, and mindfulness practice. Every client completes a pain assessment on admission. Two Dreams does not provide on-site detoxification but coordinates referrals to nearby clinics before admission, and the program maintains a maximum of 10 clients at a time so each person's progress can be evaluated individually.