So, how many of us really know what “cardio” means?

What do we do (need to start doing) it? Why is it important?

Hit the jump for your dose of Cardio 101.

I was in Pavillion when I saw these babies staring at me from inside the glass gallery of the Nike Sportswear store. The way things were set at the display made it impossible for anyone within a 50 metre radius to actually miss out on checking out these trainers.