Final answer:
The WHO defines health as a state of complete physical, mental, and social well-being, highlighting the importance of a holistic approach to human well-being.
Step-by-step explanation:
The World Health Organization (WHO) defines health not simply as the absence of disease or infirmity, but as a state of complete physical, mental and social well-being. This holistic view recognizes that human health encompasses more than just the physical aspects; it includes psychological and social dimensions that contribute to the overall well-being of individuals. Addressing health needs requires a multidisciplinary approach that can encompass personal experiences, sociocultural factors, and medical research, guided in part by an evolutionary perspective.