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A treadmill is a device generally used for walking, running, or climbing while staying in the same place. Treadmills were introduced before the development of powered machines to harness the power of animals or humans to do work, often a type of mill operated by a person or animal treading the steps of a treadwheel to grind grain.
A treadwheel, or treadmill, is a form of engine typically powered by humans. It may resemble a water wheel in appearance, and can be worked either by a human treading paddles set into its circumference (treadmill), or by a human or animal standing inside it (treadwheel).
"Hedonic treadmill" is a term coined by Brickman and Campbell in their article, "Hedonic Relativism and Planning the Good Society" (1971), describing the tendency of people to keep a fairly stable baseline level of happiness despite external events and fluctuations in demographic circumstances. [2]
A penal treadmill (penal treadwheel or everlasting staircase) was a treadwheel or treadmill with steps set into two cast iron wheels. These drove a shaft that could be used to mill corn, pump water, or connect to a large fan for resistance.
Euphemism treadmill, in sociolinguistics the tendency for euphemisms to become dysphemisms; Hedonic treadmill, in positive psychology the tendency of a person to remain at a relatively stable level of happiness despite changes in fortune or the achievement of major goals
Jogging outdoors is a better way to improve energy levels and advance mood than using a treadmill at the gym. [14] Jogging also prevents muscle and bone damage that often occurs with age, improves heart performance and blood circulation and assists in preserving a balanced weight gain.