What is a heart rate? A heart rate is when you count how many time your heart beats in a minute. When you are running your heart rate speeds up and when your relaxing your heart rate slows down.
What is the normal heart rate for someone your age? I am 13 and the normal heart rate for a 13 year old is between 70 and 120 beats per minute.
When you exercise your heat rate....? It increases when you exercise and when you are relaxing it will decrease.
How does heart rate change as you get older? It decreases when you get older because of your age and when you get really old your heart rate will slow right down and when you are first born your heart rate is between 100 and 140 beats per minute.
How can you measure heart rate? you can measure it with your pulse and to measure your pulse you put 2 of your fingers on the side of your neck.
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