Geography can affect human health in several ways. Location influences factors like access to healthcare services, exposure to environmental hazards, and interaction between populations. Medical geography studies these spatial relationships between health and place. Historically, maps have helped illustrate disease patterns and direct public health responses. Effective maps consider properties like scale, legend, title, and data source to clearly portray geographic context and allow readers to properly interpret the information. The type of map chosen should balance the data, purpose, and audience. Maps can provide insight but also require careful design to avoid being misleading.