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Physical fitness is achieved through exercise, among other factors.Photo shows Rich Froning Jr., four-time winner of "Fittest Man on Earth" title.. Physical fitness is a state of health and well-being and, more specifically, the ability to perform aspects of sports, occupations, and daily activities.
Life expectancy is also used in plant or animal ecology, [10] and in life tables (also known as actuarial tables). The concept of life expectancy may also be used in the context of manufactured objects, [ 11 ] though the related term [ dubious – discuss ] shelf life is commonly used for consumer products, and the terms "mean time to breakdown ...