Q Week 2: Nutrition and Physical Activity 7777 unread replies.117117 replies. For discussions, create a 1- to 2-minute multimedia piece (for example, a video, poster, narrated PowerPoint, etc.) of your choosing and post it to the discussion to respond to the above question. Besides posting your individual multimedia piece, you must comment on two other students' multimedia pieces. (You are not required to record your comments, but can choose to use the text comment feature.) Check out this TedEd Animation lesson: "Why sitting is bad for you." Choose two reasons why sitting is bad for us from the video to discuss. How does this video apply to your own life? What can you do to add more physical activity to your days?