Dr. David Gross, medical director of the sleep lab at the National Rehabilitation Hospital in Washington, D.C., says more than three-quarters of the patients who come to his lab are diagnosed with apnea. Jenny Gold/Kaiser Health News hide caption

itoggle caption Jenny Gold/Kaiser Health News

Wouldn't you love to know what she's jotting down? Of course you would. iStockphoto.com hide caption

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Do you really need that MRI, or is your doctor just trying to make a buck? iStockphoto.com hide caption

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Faith-based groups that share health-care expenses struggle with the question of how much of the burden to share. Stan Rohrer/iStockphoto.com hide caption

itoggle caption Stan Rohrer/iStockphoto.com

President Barack Obama speaks at FamiliesUSA's 16th annual health action conference in Washington on Friday. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP