Will 2,800 curls in 28 days give you superhero arms? Not quite. But it will give you stronger, fuller biceps, tougher grip ...

Is financial wellness one of your new year's resolutions? Check out this 28-day challenge full of smart money management tips straight from experts. Our editors independently select these products.

Confession: Despite my lengthy career as a fitness journalist and being well-versed in the health benefits of a strong core, I have not been consistent with training my abs for a while. (Hi, holidays ...