Abstract

Chronic diseases, including cardiovascular disease, diabetes, and cancer, represent a growing global public health 
challenge, accounting for approximately 63% of worldwide deaths, with a disproportionate burden in low- and 
middle-income countries. This narrative review synthesizes evidence on strategies to prevent and manage chronic 
diseases across primary, secondary, and tertiary levels of intervention. Primary prevention approaches emphasize 
lifestyle modification, behavioral interventions, and environmental and policy measures to reduce exposure to risk 
factors such as tobacco use, unhealthy diets, physical inactivity, and excessive alcohol consumption. Secondary and 
tertiary strategies focus on early detection, risk reduction, disease management, rehabilitation, and long-term care 
to prevent disease progression, enhance quality of life, and reduce morbidity and mortality. Community-based 
approaches, social determinants of health, cultural and contextual considerations, and health equity are critical 
factors influencing the effectiveness and sustainability of interventions. Implementation science and monitoring 
and evaluation frameworks are vital for scaling up successful interventions and ensuring long-term impact. 
Despite progress, gaps remain in understanding the implementation of evidence-based strategies and addressing 
disparities in access to prevention programs. Future directions emphasize culturally tailored, equity-focused, and 
multi-level approaches to reduce the global burden of chronic diseases.