I suffer from asthma and my lungs never breathe at full capacity. My little trick is that I chew eucalyptus gum to help open my lungs even more and breathe in more toxins to help poison my lungs. When I exhale smoke you can see that not much smoke comes out of my mouth and that is because the rest of the smoke is trapped in my lungs. My lungs are rotting and I'm especially excited about it.