Jack Lalanne on stretching:
“Warming up is the biggest bunch of horse—— I’ve ever heard in my life. Fifteen minutes to warm up! Does a lion warm up when he’s hungry? ‘Uh-oh, here comes an antelope. Better warm up.’ No! He just goes out and eats the sucker. You gotta get the blood circulating, but, does the lion cool down? No, he eats the sucker and goes to sleep. And that, is the truth.”
Lions also sleep eighteen hours a day on average. That’s ten more hours a day than humans do. They also don’t get to eat very often, unless there is a lot of easy prey or carrion around.