Scientific evidence now supports what many safety and health professionals, as well as workers themselves, have long suspected—that risk factors in the workplace can contribute to health problems previously considered unrelated to work. For example, there are work-related risk factors for abnormal weight fluctuations,[4][5] sleep disorders,[6] cardiovascular disease,[7] depression,[8][9][10] and other health conditions. In recognition of these emerging relationships, the TWH approach focuses on how environmental, workplace factors can both mitigate and enhance overall worker health beyond traditional occupational safety and health concerns.[1]