Practices that help to maintain health and prevent disease, especially through cleanliness.
The position that you hold your body when sitting, standing, or doing other similar activities.
The science of desigining and arranging things so people can use them easily and safely.
Diseases caused by abnormal chromosomes or defective genes inherited from one or both parents.
A dysfunction of the immune system where the body may have immune responses to something that is harmless to the body.
Diseases that are the result of a combination of genetic physiological, environmental, and behavioral factors. However, your choices can make a decision in how these diseases may affect you.
Diseases that are associated with old age, such as Alzheimer's disease and arthritis.
Diseases that are transferable or transmitted from one person to another through touch, air, or other means.
Diseases that are not transferable or transmitted through touch, air, or other means.
Bacteria, virus, or other microorganisms that can cause disease.