The answer would be a Chest strap
In order to monitor your Target heart Rate Zone, the most common method is by using a heart monitor (the portable device) to measure your heart rate during various types of activities. In order to keep the heart monitor in place during the your activities you could use a Chest Strap.
<span>More than 80 percent of adults do not meet the guidelines for both aerobic and muscle strengthening activities found in Healthy People 2020.</span>
Answer: 15 cups a day for men, 11 for women
Explanation: