Confession: I'm a former cardio junkie who used to only focus on spinning classes, cardio kickboxing, stair climber machines & treadmills. It's not that those fitness classes or exercise machines are inherently bad, it's just that I needed to add some strength-training to my exercise regimen. I used to think (many years ago) that I should not lift weights that are heavier than 5 pounds, for fear that I would "bulk up." Now I know … [Read more...]