"I've never known anyone who used ..." Sounds extremely anecdotal to me. I can assure you that the CPAP for me does marvelous things. My brother uses it, and

"I've never known anyone who used ..." Sounds extremely anecdotal to me. I can assure you that the CPAP for me does marvelous things. My brother uses it, and he is extremely fit and lean. I would not espouse such opinions without first finding some scientific literature to back up your claims. My device has cost me only 1500, and the returns on increasing my quality of life is well worth it.