Tobacco is a legal drug but it is also a very addictive substance which has stimulating effects on the smoker's central nervous system and which carries many health risks.

Tobacco use is associated with numerous diseases: different types of cancer, cardiovascular and respiratory diseases, problems in reproduction and many other pathologies. Furthermore, exposure to tobacco smoke is associated with many of these diseases involving numerous risks. Smoking also has serious social, economic and environmental consequences.

A healthy life is a life without tobacco. Quitting smoking is probably the most important thing a smoker can do to improve their health, regardless of age or background as a smoker. Quitting smoking will improve your health and that of those around you.

Source: Guide to Quitting Smoking. Smoke-Free Primary Care Program (PAPSF). Public Health Agency. Government of Catalonia. Available at:

More resources:


Drug addicts

Drugs are substances that act on the central nervous system when introduced into the body. This causes changes that can affect behaviour, mood, or perception. In addition, consumption may involve:

  • Psychological dependence. This occurs when the person needs to consume the drug to experience a state of pleasure or to avoid a certain affective discomfort. 
  • Physical dependence. When the body has become accustomed to the presence of the drug and needs this substance to function normally.
  • Tolerance. When it is necessary to increase the dose of a commonly used drug to achieve the same effects that were obtained with smaller doses.

The regular user of any kind of drug may experience any or all of these three effects at once.


Alcohol is the most consumed and accepted drug in our society and the one which generates the most social and health problems (dependence, digestive diseases, cardiovascular diseases, injuries resulting from traffic accidents, absenteeism, etc.).

Excessive and habitual consumption of alcohol harms the liver and pancreas, causes gastritis and stomach ulcers, malnutrition and disorders of the nervous system. It can increase the risk of injury, aggravate physical, mental and social problems, and can damage family and work relationships. In addition, due to the mechanisms of tolerance and brain neuroadaptation, this consumption can lead to medium and long term dependence on alcohol or alcoholism

The World Health Organization (WHO) states that there is no safe level of alcohol consumption and the less alcohol you drink, the better for your health. And if you do drink, always keep it below the levels considered risky.


Source: General Help and Support Tips to Help Reduce Alcohol Consumption. Public Health Agency of Catalonia, Generalitat de Catalunya. Available at:

Guide to recommendations on alcohol and other drug use at local festivals. Public Health Agency of Catalonia, Generalitat de Catalunya. Available at: