Population aging and proposals for delaying retirement in many countries have led to greater interest in understanding the potential long-term associations between retirement and health. As an important life transition, retirement may influence health by changing financial resources, psycho-social stressors, health behaviors, social integration & personal control. Early retirement may be a risk factor for mortality and prolonged working life may provide survival benefits among older adults. Transitioning from work to retirement could be either beneficial or harmful for health. Results showed cardiovascular disease risk is increased after retirement. In terms of health outcomes, CVD remains the biggest cause of death worldwide. When studying the association between retirement & CVD or its risk factors, it is important to consider reverse causality, as poor health may be a determinant of retirement, especially for early retirement. Poor mental health may influence people's decisions about, and ability to keep working into later adulthood.The identification of factors that drive retirement provides valuable information for policymakers attempting to mitigate the effects of population.