Mortality modeling is a cornerstone of actuarial science, playing a crucial role in life insurance, pension funds, and public health policy. Traditional methods often rely on aggregate data and simple models like the Gompertz law, but these can be limited in capturing complex individual dynamics. Recently, there’s been a shift towards more sophisticated approaches, such as modeling individual vitality dynamics. This framework offers a nuanced understanding of how vitality affects mortality, allowing for more accurate predictions and better decision-making in actuarial applications.