Answer: I would think if it is effective you would notice a reversal of the symtoms it causes.The most common symptoms of sleep apnea in adults are loud snoring and excessive daytime sleepiness. Almost all people who have sleep apnea snore, but not all people who snore have sleep apnea.Other signs and symptoms of OSA include: episodes of not breathing; Restless tossing and turning during sleep; nighttime choking spells, sweating, and chest pain; waking with an unrefreshed feeling after sleep, having problems with memory and concentration, feeling irritable and tired, and experiencing personality changes; morning headaches; heartburn or a sour taste in the mouth at night; in obese adults, swelling of the legs; getting up during the night to urinate; daytime naps or sleeping during inappropriate times or activities. People with Sleep Apnea may exhibit onset high blood pressure, unexplained weight gain, depression and other health conditions.Untreated, sleep apnea can cause high blood pressure and other cardiovascular disease, memory problems, weight gain, impotency, and headaches. Moreover, untreated sleep apnea may be responsible for job impairment and motor vehicle crashes. Fortunately, sleep apnea can be diagnosed and treated. Several treatment options exist, and research into additional options continues.For more help, try this link and hope the new machine helps. That's a long time to suffer. I have heard of people losing weight on bipap/cpap.http://www.apneasupport.org/about6416.ht...