drug_harm_presentation

1.

THE HARM OF DRUGS
ON THE HUMAN BODY
A comprehensive overview of physical, mental, and social consequences
Health & Science Education | 2026

2.

WHAT ARE DRUGS?
DEFINITION
MAIN CATEGORIES
Drugs are psychoactive substances that alter
the normal functioning of the brain and body.
Opioids
Heroin, morphine, fentanyl
Stimulants
Cocaine, amphetamines, meth
Depressants
Benzodiazepines, alcohol
Hallucinogens
LSD, psilocybin, PCP
Cannabis
THC, CBD compounds
They can be:
Natural (cannabis, cocaine)
Synthetic (methamphetamine)
Semi-synthetic (heroin)
All categories carry serious risks of addiction and health damage.

3.

EFFECTS ON THE BRAIN
How Drugs Hijack Your Brain
Drugs flood the brain's reward system with dopamine — up to 10× the normal amount — creating
intense euphoria and rewiring neural pathways toward addiction.
Memory Loss
Mood Disorders
Brain Damage
Long-term drug use shrinks the
hippocampus, impairing the ability
to form and retain memories.
Chronic use depletes serotonin and
dopamine, leading to severe
depression, anxiety and paranoia.
Stimulants and solvents cause
neurotoxicity — permanently
destroying brain cells and
connections.

4.

PHYSICAL HEALTH CONSEQUENCES
Heart & Cardiovascular
Lungs & Respiratory
Liver & Kidneys
Heart attacks
Irregular heartbeat
High blood pressure
Stroke
Chronic bronchitis
Lung cancer (smoking)
Respiratory failure
Pulmonary infections
Cirrhosis (alcohol)
Hepatitis B/C (needles)
Kidney failure
Organ shutdown
Immune System
Skin & Appearance
Reproductive System
HIV/AIDS risk
Lowered immunity
Frequent infections
Slow wound healing
Needle track marks
Skin abscesses
Rapid aging
Severe weight loss
Infertility
Fetal harm during pregnancy
Hormonal imbalance
Sexual dysfunction

5.

THE CYCLE OF ADDICTION
1
2
3
4
5
First Use
Pleasure
Tolerance
Dependence
Addiction
Curiosity, peer
pressure, or escape
from pain
Brain releases massive
dopamine surge
More drug needed for
the same effect
Body cannot function
without the substance
Compulsive use
despite severe
consequences
⚠ WITHDRAWAL SYMPTOMS
Intense cravings • Insomnia • Tremors • Seizures • Vomiting • Severe depression • Psychosis

6.

SOCIAL & LIFE CONSEQUENCES
PERSONAL & SOCIAL IMPACT
GLOBAL STATISTICS
Family Breakdown
Relationships destroyed by mistrust, violence, and neglect.
Loss of Employment
Inability to maintain work due to unreliability and poor
performance.
Financial Ruin
Addiction consumes all resources, leading to debt and poverty.
Criminal Behavior
Drug-seeking leads to theft, fraud, and legal prosecution.
39.5M
people worldwide suffer from drug
use disorders (UN, 2023)
500K+
drug-related deaths occur every
year globally
50%
of all traffic accidents involve
alcohol or drugs
70%
of homeless individuals struggle
with substance addiction

7.

PREVENTION & RECOVERY
Education
Strong Social Bonds
Learning about risks is the most powerful
prevention tool.
Supportive family and friends
dramatically reduce risk of drug use.
Healthy Lifestyle
Professional Help
Sports, hobbies, and goals give
alternatives to substance seeking.
Rehabilitation centers, counseling, and
medication-assisted therapy work.
Recovery is possible — but prevention is always better than treatment.

8.

C O N C L U S I O N
Say NO to Drugs.
Protect your brain. Protect your body. Protect your future.
Drugs destroy health, relationships, and futures. No substance is worth your life.
If you or someone you know needs help — reach out to a medical professional or helpline immediately.