Heart rate monitors are a great exercising tool. Athletes and coaches around the world use them all the time to help them train. They give you an accurate loading of the amount of exercise you are doing, and it is hard to find something so accurate and convenient. You can simply wear it during nearly every activity, and actually train to the intensity you need to achieve your goals. There are many kinds of heart rate monitors out there and it is important to be knowledgeable because they can often get expensive.
If you want to work out at a certain intensity, then a heart rate monitor allows you to see where you are at. Many people want to work in a fat burning zone. But how do we actually know what fat burning zone we are in unless we have a heart rate monitor. You can then check easily found charts on the web to calculate for your specific gender age and athletic ability, what intensity and heart rate you need to work at to achieve your goals.