3/ 🧵 The highest number of appropriate heart rates during exercise differs depending on the individual and relies on several criteria. Age is the most essential basis since it determines that largely. After studying with an illustration, all that is needed is to deduct their age from 220 to know the maximum heartbeat rate during the activities.

This is why the ideal heartbeat rate for someone forty years old is equal to two hundred twenty times forty, or 180. If the number is any higher than that, the person's life is seriously threatened.