Tobacco causes about 40,000 deaths in Spain every year and leads to illnesses like lung cancer, coughs, and heart attacks. It also damages non-smokers through secondhand smoke. The law protects non-smokers by prohibiting smoking in schools, hospitals, and other enclosed public spaces. Alcohol is the most consumed toxic substance and limits brain functions while damaging the nervous system and causing memory loss and heart disease. Cannabis products like marijuana and hashish are smoked and quickly absorbed into the brain, potentially causing problems with concentration, memory, and coordination as well as altering hormone development. Obesity is defined as excessive fat accumulation and is a growing problem, with over 700 million people projected to be obese worldwide by 2015