Brittney: "Hey. Just caught me stretching before I do my cardio. Remember when I said not all of our workouts need to involve muscle building? Well, there are ways to strengthen our bodies without weight training. There are a lot of cardio workouts out there, and they're all good for the most important muscle of all. The heart.

"Now, I've already talked about running, but there are plenty of cardio workouts out there that don't require having to leave your workout area. For example, you can get the same results of a running or cycling workout with an exercise bike. Another common cardio workout would be aerobics. Now, the sweats from my running workout won't work here. What I'm wearing right now gives a fuller range of motion... and is good for showing off.

"Now, while running, cycling, and even throwing punches and kicks are good cardio workouts, there are a lot of others that'll work. There's machine based cardio from things like rowing machines or ellipticals, but then there's workouts like swimming, jump rope, or jumping jacks. Or if you wanna get really creative and are feeling a bit bold, I'd go for Burpees. Sure, they're a bit.... difficult, but keep at it. You'll get it."