You can individually look up videos and set them to low impact or intermediate levels. To do this go to Grokker.com, go to Fitness at the top of screen, then go to all Fitness Videos, then click more options and down the side of the screen it will show "Intensity" and you can chose low, medium or high. You can follow the same instructions for Yoga. If you need more help you can contact support@grokker.com.