Hi, about the time I was diagnosed with CMT 1a (10 years ago) my wife noticed that I stopped breathing for long periods when sleeping. I was referred by my GP to a sleep consultant. He took one look at me and said "I don't believe you have sleep apnea, you're fit and not overweight, you just don't fit the profile". However, on the strength of my wife's observations they agreed to do a sleep study and found that I do in fact have very bad SA. My SP02 (blood oxygen) levels were dropping dangerously low, which over time can lead to heart attacks and strokes if not controlled. I now use a CPAP (constant positive airway pressure) machine (free on the NHS!!) every night and have no more SA problems. I'd really like to know if CMT plays a part in this, as none of the professionals seem to know. There has been some anecdotal evidence on a link between the two published in the USA . Has anyone else experienced this problem?