Regulations of various kinds seek to reduce mortality risk. Typically, such rules relate to health, safety, security, and the environment. While it is obvious how regulations can reduce the risk of death, since reducing risk is often the primary aim of regulations, it is less obvious how rules might also increase mortality risk. Nonetheless, many regulations result in unintended consequences that increase mortality risk in various ways. These adverse repercussions are often the result of regulatory impacts that compete with the intended goal of the regulation, or they are direct behavioral responses to regulation.