Prevention

Prevention in the medical context refers to measures that are taken to reduce the chance of illness, injury, or disease before they occur. It is a fundamental approach to healthcare that focuses on avoiding the onset of health problems rather than treating them after they develop. Preventive strategies encompass a broad range of activities, including vaccinations, health education, lifestyle modifications, and environmental changes. These interventions are designed to protect and improve individual and public health by minimizing risk factors and bolstering the body's defenses against potential threats.

From a medical perspective, prevention is categorized into three levels: primary, secondary, and tertiary. Primary prevention aims to prevent diseases from occurring in the first place by targeting modifiable risk factors such as diet, exercise, and tobacco use. Secondary prevention involves early detection and intervention, such as screening tests and medical check-ups, to halt the progression of disease at an asymptomatic stage. Tertiary prevention focuses on managing established diseases in individuals to prevent complications, optimize functions, and enhance quality of life through rehabilitation efforts and ongoing medical treatment. These layers of prevention work synergistically to maintain health and extend life expectancy in the population.