It is about knowing how to use your body instead of just your arms. Back in 2009, it was a very hot day in Western Washington, over 100 degrees, and we had a lot of hay to buck. My brother brought along his big strong friend to help. He not only could not keep up, I had to put him in the pickup with the AC going full blast. My wife and daughters were outworking him.Im 59 and can out lift most of my younger coworkers. They tell me it's "old man strength"
As to boyfriends of teenage daughters, I scared off a couple, which really ticked off the daughter at the time. Now they laugh about what losers they were. I am 5'7".