Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Obesity Hypoventilation Syndrome ?
    ### Response:
    Many of the signs and symptoms of obesity hypoventilation syndrome (OHS) are the same as those of obstructive sleep apnea. This is because many people who have OHS also have obstructive sleep apnea.
                
One of the most common signs of obstructive sleep apnea is loud and chronic (ongoing) snoring.
    