Is 20 minutes of cardio a day enough?
So currently I am doing Jillian Michael's 30 day shred every other day which is 20 minutes long. Normally I would go on the elliptical for 40 minutes on the days I'm not doing the video but I'm finding it a little too easy now, so I went up a level in resistance. The thing is though is that I can only do 20 minutes with…
