Chances are you're sleep-deprived: 70 percent of Americans don't get enough zzz's. A good night's sleep doesn't just leave you bright-eyed and bushy-tailed in the morning, it's a vital part of hormone regulation. And hormone regulation is key to reproductive success. Research shows that the hormone leptin, which has a critical role in female fertility, is reduced when the body is deprived of sleep.
Image via LuminaStock/iStock/Getty Images