Why does yoga ask the participant to observe their breath moving in and moving out instead of watching TV when doing excercise? There are many good reasons.
There are two primary ones I would like to mention here. First, when you sync your breath to your movements then your body moves more efficiently allowing exercise or movement to be more enjoyable and effective for your body. Second, it brings us into the present moment, allowing the brain to produce the bio-chemicals we need to be happy, which helps to reduce stress that may other wise be harmful.
Please enjoy the research that follows: