Ventura County Star highlighted research by Jennifer Ailshire of the USC Leonard Davis School about the increase in inadequate sleep among Americans. Ailshire found that 28.6 percent of respondents self-reported inadequate sleep in 2004, compared to 32.9 percent in 2017. The study also showed that African-Americans and Hispanics have a more severe sleep surfeit. “People are exposed to things reading the news that might keep them up at night,” said Ailshire. “People are a little more plugged into bad things happening in the world.”