We are doing this research study to see how sleep apnea affects metabolism. If you choose to participate in this study, you will be asked to come to the sleep lab for two visits. During one visit, you will wear CPAP. On another night, you will wear a nasal dilator strip instead of CPAP. The research study also involves blood work, a bone (DEXA) scan, and diabetes tests. You will be paid up to $525 for completing the study.

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