It’s a well-known fact that old age often goes hand in hand with poor health, and a slightly less efficient immune system. Many different connecting factors, including genetics, environment and previous lifestyle choices can impact how quickly we age. One thing that has been observed time and time again, is the fact that people of a lower socioeconomic status experience poorer health outcomes at a younger age than those of a higher socioeconomic status. People experiencing homelessness have the lowest socioeconomic status in our society. While things like diet, smoking, and drugs can contribute, there's probably more to it. It is often suggested that the psychological stress experienced by people living in poverty or homelessness may be making them sick and making them age faster. This study suggests that homelessness might actually speed up the ageing process, making people get sick and weaker faster. It also proposes that the stress of being homeless throughout a person's life may be a big reason for this accelerated ageing.