Most of people take very less exercise everyday, they stay inside the house for most of time, sit or lie on somewhere. That’s unhealthy.
When people have chance to do exercise, it’s easy to be exciting, and take too much exercise once. Such as hiking, swimming, riding bike, running. That’s also unhealthy. We should do some prepare work to make the body adapt the rhythm, and increase the exercise time day by day.
Some of my friends hurt themselves in the past, they all sit around the compute and have less exercise. And they suddenly do too much exercise and make the body uncomfortable or hurt.
However, there are some activities, which will not cost too much power, and have less impact for the body. Such as jogging, that’s also very easy to insist on.