Looking for a way to tighten up your core? Planks are a great ab exercise because they help to build strength and endurance all the way around your middle and in your back. That's why taking the Plank A Day challenge can help reduce back pain and flatten your abs.
I’ve always been jealous of my friends who took ballet when they were younger. I still look enviously at their ballerina straight backs, perfect posture and clean, graceful lines as they move. Next to them, I look like the Hunchback of Notre-dame.