Dr, Shafer, I found your book (Asthma-Free in 21 Days) on Amazon. Was diagnosed as a perennial asthmatic as a child and have had problems with it during various stages throughout my life. I am 68 years old now and these exercises really work! You are a God-send. Thanks for the hard work you put into writing this book and for getting the message out. Here’s hoping that millions of other people are able to benefit from your work as I and many others have. Thank you, thank you, thank you!.