How Many Weightlifting Sets Is Enough?

How much weight do you need to lift to get stronger? A new study suggests it isn’t as much as you think — but more is still better when it comes to muscle size.

What Your Core Really Is And How To Strengthen It

Crunches and planks aren’t everything. If you want to strengthen your core, you need to think bigger. Your core includes all the muscles in your torso, from your shoulders down to your hips. And it does a lot more than help you sit up.