Generate a full detail guide on the mental health benefits of 'doing nothing.' The guide should be permission-giving and counter-cultural. It must include sections on: 1. Why Our Brains Need Unstructured Downtime to Recharge. 2. The Difference Between 'Doing Nothing' and Mindless Scrolling. 3. How to Schedule 'Nothing Time' Without Feeling Guilty. 4. Simple Ideas for What 'Doing Nothing' Can Look Like. Please include a supportive disclaimer.