I noticed a couple of years ago that my friend who has had P.D. for 24 years could not breath into her diaphram. I also noticed that when I was in off time that my breathing was shallow and quickened. I decided some breathing excercises might help as part of my general excercise program each day. For improved deep breathing I suggest something I learned from a yoga tape called breath of fire. I'll try to explain, You pull your belly button into the back of your spine with as much force as you can muster, thus expelling all the air out of your diaphram. Then release and let the air back in without actually breathing it in. Repeat this as quickly as you can and as many times as you can. At first it will be very difficult so start slowely and build up repetitions. It's also great for the tummy muscles girls, so that's an extra bonus. Mary Thompson from Oz