For 15 years, Carla Price and her husband's sex life was great. But then things began to change.
"Before, I would want to have sex," says Price, who is 50 and lives in central Missouri. "But over the years my sexual desire has just dwindled to nothing."
Price has no idea why. She's healthy. She's not really stressed out about anything. And she's still totally crazy about her husband.
"It's not that our relationship got boring," Price says. "Because it's actually the opposite — we became closer as we got older together."