True I would think honestly
push ups and jogging/running
pushups benefit physical strength and jogging/running benefits aerobic capacity
Dicke says this because the world’s population is growing and soon there will not be enough meat for everyone.
Our lung capacity naturally starts to decrease at the age of 30. By the time we reach 50, it could be decreased by half. I'm not sure about when we reach 90 though. Hope this helps! :)