I have been running lately, and recently my knee has been sore, so I am wanting to do something with lower impact. I am thinking about yoga. I had a video once but it was so boring and too hard to do because you can do the poses when you have to look up at the tv to see what they are doing. Anyone have any good ideas for me? Also, I am only looking for about 1/2 hour workouts at a time. And does Yoga really make you lose weight? What are all of the benefits?