I may have written this before; if so, I apologize. I am in my early 80's now. In my early 70's, I could still help unload bags of cement when we did construction work. In the USA cement comes in 80 pound bags; possibly a cubic foot? I call them wimp bags, hahaha. In Mexico cement comes in 110 pound bags (50 kilograms).
At that time, when we got a load of cement, I would try to carry in 6 or 7 bags, one at a time. I simply did not have endurance to carry more.
One day, my nephew said, "Uncle, you are the strongest North American of any age I ever knew." When Mexicans work, they joke a lot, and that sure sounded like a really good joke to me. I waited for the punch line.
He realized I thought he was joking and said, "No, uncle, I am not joking. I never knew any North American who would even try to move more than 50 pounds. If the machine they used for unloading from the truck broke, the Americans stood and watched while the Mexicans did the unloading."
What a disgrace!
Note I was over 70 years old, and very much out of shape, after years of sedentary work, but was carrying 110 pound bags of cement from the truck. This is why I think young, prime of life, military trained soldiers from Tlaxcala could carry 150 pounds and still run and fight.
As I often say, I have been wrong before and expect to be wrong again about something, but that is my opinion, based on my own experiences.
