Primary prevention of disease refers to measures taken to prevent the occurrence of disease before it happens. It is the first and most crucial step in the prevention hierarchy, aiming to reduce the risk factors and prevent exposure to harmful agents that may lead to diseases. This approach focuses on promoting health and wellness through various strategies at different levels. At the individual level, primary prevention involves actions such as health education, lifestyle modifications, and promoting behaviors that reduce the risk of disease. This includes encouraging regular physical activity, balanced diets, adequate sleep, and avoiding harmful practices such as smoking or excessive alcohol consumption. For instance, educating individuals about the importance of vaccination, using protective measures like condoms to prevent sexually transmitted infections, and promoting routine health screenings are essential components of primary prevention. At the community level, primary prevention extends to public health initiatives aimed at improving the living conditions and overall environment. This could include sanitation improvements, clean water access, promoting vaccination programs, and reducing exposure to environmental