Sustainable Development Goal 3 (SDG 3), established by the United Nations under the 2030 Agenda, seeks to ensure healthy lives and promote well-being for all people at all ages. It addresses a broad spectrum of health priorities, ranging from reducing maternal and child mortality to combating epidemics such as HIV/AIDS, malaria, and tuberculosis, as well as non-communicable diseases like cancer, diabetes, and heart conditions. SDG 3 also emphasizes the importance of universal health coverage, ensuring that everyone can access quality healthcare services without suffering financial hardship. It includes targets for improving mental health, preventing substance abuse, and reducing road traffic accidents, recognizing that health is shaped by physical, mental, and social well-being. Another critical aspect is strengthening the capacity of countries to respond to health emergencies, as highlighted by the COVID-19 pandemic, through better preparedness, early warning systems, and resilient healthcare infrastructure. The goal also focuses on ensuring access to essential medicines and vaccines, improving health education, and addressing environmental health risks such as air pollution and unsafe water. Achieving SDG 3 requires global cooperation, adequate funding, and equitable healthcare policies that leave no one behind, ultimately creating healthier communities and enabling people to lead longer, more productive lives.