###Human: A male with muscle spasms is tired and sleepy throughout the day. What could this be? ###Assistant: Hello. It is clear that he has obstructive sleep apnea which causes interrupted sleep during the night due to obstruction of the nasopharyngeal air flow. As a consequence, he becomes sleepy in the daytime. Confirmation of the diagnosis requires: Has he done any of these tests? CPAP (continuous positive airway pressure) is helpful in relieving the symptoms. Also, reducing the weight is very helpful. For more information consult a general medicine physician online -->