Exercise your heart and lung function while running, and exercise your mood while walking. The two can't be mentioned in the same breath, because when running, as long as you keep a fixed speed, your body will have enough energy supply at the beginning, and you don't need to burn fat, so you won't be so tired and panting, especially without oxygen, but after a long time, your temporary energy will not be enough, that is, you will burn fat.
Walking is more of a process of exercising mood. You may just feel a little sleepy for three and a half hours or even an hour, but in fact you don't sweat or consume much energy, so this is not a good exercise. For some elderly people suffering from cervical spondylosis and scapulohumeral periarthritis, it is natural to be over 60, but for some young people, middle-aged people can walk without any illness.
If you want to achieve a good exercise effect, you must work hard enough, just like if you want to lose weight, you must run step by step. Don't worry so much about how long it will take to lose weight. Stick to it every day and you will naturally lose weight. The more I think about it, the more psychological burden I have, and the more I feel that I can't persist. In the final analysis, the core of this kind of thing is persistence. No matter the intensity or the way, as long as you are in the right direction, it will be effective to persist every day.