Option 3: The next time you feel stressed, practice deep breathing. See instructions below. How does this deep breathing affect your stress level and symptoms of stress?1. Get comfortable. Lie on your back in bed or on the floor with a pillow under your head and knees. Or sit in a chair with your shoulders, head, and neck supported against the back of the chair.2. Breathe in through your nose. Let your belly fill with air.3. Breathe out through your nose.4. Place one hand on your belly. Place the other hand on your chest.5. As you breathe in, feel your belly rise. As you breathe out, feel your belly lower. The hand on your belly should move more than the one on your chest.6. Take three more full, deep breaths. Breathe fully into your belly as it rises and falls with each breath.