Thank you for the warning. I have heard it can be life threatening and now I know it can be. It had become dangerous for me because I was falling asleep driving many times everyday and had many near misses. The doctor at the sleep center who is treating me now told me that I was a danger on the road and not to drive so I took a medical leave until I am feeling better. I've known for a while that something was wrong with me but it took a long time to finally find out what it was. I get my CPAP machine tomorrow and hope that life will start getting better in many ways. My family doctor had tried me on the drug Provigil to keep me awake and for 3 days it worked and it was the difference between night and day how I felt. I hope I feel that way from the CPAP.