Heart Rate Line
 The top line is heart rate, |
 heart rate helps you track |
 or the heart rate monitor |
 out how the heart works |
 Heart Rate: Do You Have A |
 Heart Rate Variability… the |
 of a heart-rate graphic |
 Animating Heart Rate Graphic |
 Besides decreasing heart rate |
 heart rate (solid line) as |
 may notice that Heart Rate |
 red line is my heart rate, |
 Heart beat. A |
 Life Line cartoon 6 - search |
 speed up your heart rate |
 Stock image of 'A heart rate |
 At The Heart Of It All |
 QT corrected for heart rate |
 on the heart rate monitor |
 that keeps your heart rate |