A crash diet slows your metabolic rate. When this happens, your body will store energy instead of burning it and you can actually gain weight.
A gradual increase in the number of days and the time spent being active will help reduce the risk of injury.
A warm-up before aerobic activity allows a gradual increase in heart rate and breathing.
A typical aerobics class burns about 300 calories.
An effective cardio exercise will increase your heart rate, which burns more calories while strengthening your cardiovascular system.
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