New Weekly Tipz! When a trainer mentions the word STRENGTH, too often folks assume they only mean the kind of strength burly muscle-bound guys want. This couldn’t be further from the truth. Every man, woman & child needs a basic base level of strength to function properly in the world. But to get it, you must train for it. This should be a top priority for everyone. Doing cardio without ever training for strength is a really bad idea, especially if you are just trying to lose body fat.