Nutrition, Health & Aging

Nutrition is the biochemical and physiological procedure by which an organism uses food to support its life. It offers organisms with nutrients, which can be metabolized to generate energy and chemical structures. Failure to obtain adequate nutrients causes malnutrition. Nutritional science is the examination of nutrition, though it typically emphasizes human nutrition.

Health, permitting to the World Health Organization, is "a state of complete physical, mental and social well-being and not only the absence of disease and infirmity". An assortment of definitions has been used for dissimilar purposes over time. Health can be endorsed by encouraging healthful activities, such as regular physical exercise and adequate sleep, and by reducing or avoiding unhealthful activities or situations, such as smoking or excessive stress. Some factors affecting health are due to individual choices, such as whether to involve in a high-risk behavior, while others are due to structural causes, such as whether the society is decided in a way that makes it easier or harder for people to get essential healthcare services. Still, other factors are elsewhere both individual and group choices, such as genetic disorders.

Ageing (BE) or aging (AE) is the course of becoming older. The term escalations mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are possibly biologically immortal. In a broader sense, ageing can state to single cells within an organism which have ended dividing, or to the population of a species.


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