Warm-ups let your body gradually adjust to the exercise, preparing you for the harder work to come and actually making the session easier. Five to 10 minutes of running or walking before you start putting your body through its paces will also lessen the strain on your heart and reduce the chances of injury.
An abrupt finish to exercise can cause cramps, dizziness, abnormal strain on the heart, and hamper the removal of the body’s waste products such as lactic acid. Just spend five minutes longer on your feet at a gentle pace to cool your body.
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