When there’s an anxiety-producing event looming – an important presentation, dental surgery, a first date – you can start to calm your nerves the day before with this exercise. Close your eyes and gently bring your lips together. Inhale through your nose. As you exhale (also through your nose), make a humming sound: “Mmmmmm.” Let this hum last as long as it is comfortable. Then inhale and repeat. Don’t try to control it too much. Just breathe in and hum out. If you try to ext