In the 1990s, Curves was a big hit with moms, including mine. Every week she’d put on comfy shorts and a big T-shirt and make her way around the fitness studio’s resistance machines, set up in a ...

If you only have 15 minutes to sweat, it's easy to skip out on a workout. I mean, how much can you really accomplish in 15 minutes, right? Umm, a lot, actually—if you spend them wisely. That's the ...