We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
Good cardio is about cardio-pulmonary endurance, muscle-maintenance, and slightly about burning fat (but only if on a carb-deprived diet). Intense cardio will not build any strength except maybe in your heart muscle, but everybody needs it to stay fully functional. Apparently non-intense cardio (swimming laps, walking) doesn't do much of anything.
20 minutes of this will do you good if it doesn't kill you.