make money What is a heart-rate monitor? Monitoring your heart rate is easy: If you’re living, you’ve got one. A heart rate monitor allows you to effectively train at your target heart rate for optimal results during competition. First you’ve got to understand how monitors work. Most look like wristwatches and combine timekeeping functions with [...]
Posts Tagged ‘Health Fitness’
Heart Attack Symptoms
April 1st, 2010
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