There is a very scientific reason that your heart rate increases fast during exercise. How fast your heart rate increases during exercise depends on the intensity level of your workout. It is important to monitor your heart rate both for its resting rate and for your target heart rate. read more
" You should know your current heart rate for maximizing your exercise regimen. This helps you strengthen your heart to derive maximum benefit from it. read more
During long-duration exercise, your heart rate may gradually increase, even if you maintain a set pace. This "cardiovascular drift" occurs as you lose water through sweating and as your heart directs more blood to your skin in order to cool you down. read more