Snoring with intermittent breath-holding while sleeping is considered as simple obstructive sleep apnea syndrome, simple snoring with central apnea syndrome, and mixed sleep apnea syndrome. 1. Simple Obstructive Sleep Apnea Syndrome: This disease will lead to recurrent complete or partial obstruction of the upper airway during sleep, and it is one of the causes of snoring and intermittent breath-holding during sleep. 2. Simple snoring and central sleep apnea syndrome: when simple snoring is accompanied by central sleep apnea syndrome, it will also cause snoring and intermittent breath-holding, which will lead to central respiratory depression during sleep. 3. Mixed Sleep Apnea Syndrome: Mixed Sleep Apnea Syndrome is one of the types of Sleep Apnea Syndrome, which has a complex pathogenesis and is characterized by both Obstructive Sleep Apnea Syndrome and Central Sleep Apnea Syndrome. If you experience snoring and intermittent breath-holding during sleep for a long period of time, it is recommended that you consult a physician for polysomnography to determine the type of the disease.