If you are a porter, you need to consume a lot of physical strength. It is an exercise for the whole body muscles, which can develop muscles and increase muscle strength. Of course, if you don't eat enough, your muscles won't grow, but your strength will improve obviously. This kind of work is equivalent to anaerobic fitness exercise, but it has little effect on cardiopulmonary exercise.
If you want to achieve the effect of strengthening your physique, you have to cooperate with aerobic exercise, including running, swimming, skating and mountaineering.
Those with light intensity requirements and relatively high exercise frequency can obviously hear the movements of breathing and heartbeat acceleration.
Deal with it yourself
If work is excluded, from the perspective of normal physical fitness.
It is best to exercise for 2 hours every day.