My heart and lungs are two of my very best friends. I depend on my body buddies every minute of my life. I want to take good care of them. Well so long for now. I hope you will take really good care of your heart and lungs, your body buddies. If anybody ever wants you to do something that you think might hurt these two good friends of yours try to remember some of the things your other buddy, Professair, talked about with you. Bye bye and happy breathing.