a state of complete social, mental and physical well-being and not merely the absence of disease
disease?
a disorder of structure or function in an animal, or plant, and not simply a direct result of injury
communicable?
travel from organism to organism
non communicable?
cannot travel from organism to organism
What does HIV lead to?
a decline in white blood cells until can't fight off other infections and then turns into AIDS. People therefore die from other illnesses because immune system is extremely weak