Alyson Hurt

New data from the U.S. Census Bureau present the most detailed picture yet of the dramatic rise in the number of people covered by health insurance since the Affordable Care Act went into effect.

County-level data going back to 2010, when the law was signed, show a patchwork of people living without health insurance that ticked down slowly for the first three years under the ACA. But once the online insurance exchanges opened at the end of 2013 and Medicaid expanded, the population living without coverage dropped noticeably.

Since going over capacity last week, the water level in the Oroville Dam has dropped, but it's still at a higher level for this time of year than the previous 16 years.

Are any U.S. Olympic athletes from your town? To find out, you can check our listing of Olympians' hometowns and birth cities below, which draws from data we got from Team USA.

The Virgin Islands and Washington, D.C., are represented in Rio — but not every American state is: No U.S. athletes said they were from North Dakota, West Virginia or Wyoming.

Of the American team's 554 athletes, 47 were born in other countries — the most came from China and Kenya, which account for five each.

If there's such a thing as an average U.S. Olympic athlete at the Rio Games, she might look something like this: a 26-year-old woman from California who stands about 5 foot 8 — and is now at her first Olympic Games.

Those qualities are among the most common NPR found after sifting through data about Team USA's 554 athletes in Rio, identifying averages and common characteristics.

It's been two weeks since a gunman ended the lives of 49 victims and injured dozens of others at the Pulse nightclub in Orlando, Fla. As survivors heal and a community embraces the wounded and honors the dead, questions linger about what happened that night — and how the U.S.

Sure, playing in the women's World Cup burns a lot more energy than watching the women's World Cup. But the number of calories expended in sports and daily activities isn't always so obvious.

To figure it out, we dove into this database compiled by Arizona State University. It charts the energy expenditure for hundreds of activities, from mainstream ("bicycling, leisure, 5.5 mph") to obscure ("caulking, chinking log cabin").

"Alcohol use disorder" might not be a hashtag, and there's good reason. The term was created in 2013, when the DSM-5, the bible of mental health diagnoses, ditched the two distinct disorders of alcohol abuse and alcohol dependence in favor of one term: alcohol use disorder.