How to Spell Exercise: Avoid Common Mistakes
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Exercise functions both as a noun and as a verb. As an uncountable noun, it denotes bodily exertion intended to sustain physical fitness. As a countable noun, it refers to a structured learning task or problem in a textbook. As a verb, it describes performing physical movements or applying a right, authority, or caution.
Regular physical exercise improves cardiovascular health and sleep quality.