Specifically, that exhaling can feel more relaxing or enjoyable than inhaling when done consciously. It suggests a basic breathing exercise:
- Inhale for 4 seconds
- Hold the breath for 8 seconds
- Exhale slowly over 4 seconds
Do this cycle 10 times and then observe how it makes you feel, possibly more calm, relaxed, or focused.
This is used as a CBT (Cognitive Behavioral Therapy) and yes it does work for helping one feel calm, relaxed and focused.