Jogging is a kind of aerobic exercise which helps people breathe better. It can keep the heart rate at a high-speed level for a long time (depends on how long people spend). A goal of aerobic exercise is to train the different types of muscles so people can keep fit by increasing the muscle mass. Since people increase the muscle mass, they can be successful to increase the lean level and decrease the body fat. In this way, people can keep fit and be healthy.