Is the stevedore tired?

I just went out to work and went to a logistics company in Shenzhen to do logistics classification work, which is similar to the work of stevedores. It was difficult to walk at first, which made my back ache. If you are young, don't worry, you will get used to it in two or three days. When I was thin, I got used to it in a few days! There are light and heavy goods, and the heavy goods are all completed by the company's simple unloading machinery. The range of human ability is about 100 kg. You can't carry 200 kilograms of goods every day and do it with a smile on your face. Also, being a logistics stevedore is too leisurely. Without a clear orientation and goal, it is easy to lose yourself in a leisurely day.