I have always loved swimming and have in the water since I was little. This year when the pools opened after the hoilday I took my daughter & a friend for swimming. I found that with this diagonsis I prevents me from going under like I used to do. The water bouancy affects the lungs. Without a diaphgram and with the water supporting the body there is no way to get air into the lungs. If I am in the water my lung capacity is related directly to the amount of body (chest area) out of the water. Full breath results when I I am standing in the pool waist deep. The breathing capacity decreases as I lover myself. Just a word. You can dive in as long as you can get right back out!!.