According to WHO health-related quality of life (HRQoL) is defined as the subjective assessment of the impact of disease and its treatment across the physical, psychological, and social domains of functioning and well-being Within the field of healthcare. Quality of life is often regarded in terms of how a certain ailment affects a patient on an individual level. This may be a debilitating weakness that is not life-threatening; life-threatening illness that is not terminal; terminal illness; the predictable, natural decline in the health of an elder; an unforeseen mental/physical decline of a loved one; or chronic, end-stage disease processes