for drivers, all of these things can cause them to get angry. when a car is too slow, for example, a driver could wish that the car was moving faster instead. sometimes drivers can even become so angry by things like traffic jams and tailgating that there's incidents of road rage. you might've even heard about a few of these incidents in the news!
Subtract your age from 220 to get your maximum heart rate. Calculate your resting heart rate by counting how many times your heart beats per minute when you are at rest, such as first thing in the morning.