Tobacco causes about 40,000 deaths per year in Spain and leads to illnesses such as lung cancer, heart attacks, and coughs. Tobacco smoke harms both smokers and those around them. The law prohibits smoking in schools, hospitals, and other enclosed public spaces. Alcohol limits brain and nervous system functions and can cause memory loss and heart disease. Cannabis products like marijuana and hashish are absorbed quickly by the lungs and brain and can impair concentration, memory, and coordination. Obesity, defined as excessive fat accumulation, affects over 1.6 billion people worldwide and is expected to affect over 2.3 billion adults by 2015. Main causes are an imbalanced diet with too many calories and less physical activity. Obesity