TLDR's from Breath by James Nestor

• Breathe through your nose, not your mouth. Your mouth is for eating and complaining, not breathing.
• Practice breath control. It's like yoga for your lungs. Inhale, exhale, don't pass out.
• Stop mouth breathing. Unless you want to wake up with dry mouth and bad breath, like a desert corpse.
• Sit up straight with your shoulders back. Look confident, breathe confidently.
• Do breathing exercises.
• Pay attention to your breathing patterns.
• Consider using a breathing device. Or tape the center of your lips together before sleep.
• Practice mindfulness.
• Practice gratitude. Being thankful is good for your health, and your mom will be proud.