Loneliness may be part of the human condition, but social media don't seem to be harming teenagers' social lives. Neil Webb/Ikon Images/Corbis hide caption

"A" is for Abacus LA Johnson/NPR hide caption

The "Aroma R-evolution" kit comes with four forks and 21 vials full of aromas like olive oil, mint and smoke. You drop a dab of scented liquid onto the base of the fork, and the smell is supposed to subtly flavor the food you eat while using the utensil. Claire Eggers/NPR hide caption

Young adults seem to be taking advantage of health coverage. But they're still skipping the flu shot. Image Source/Corbis hide caption

The Limbic Reward System lights up when curiosity is piqued. LA Johnson/NPR hide caption

Feeling blue? That may not be a great excuse to tuck into some mac and cheese. iStockphoto hide caption

Teenagers typically choose condoms or the pill for contraception, but doctors say longer-acting methods work best. B. Boissonnet/Corbis hide caption

Hearing from older students that high school gets better may help teenagers avoid depression. Cargo/ImageZoo/Corbis hide caption

The French enjoy horse meat — here's a horse meat butcher in Paris. But even the French were angry that they had been paying beef prices for it last year. Thomas Coex/AFP/Getty Images hide caption

This human-scale lab rat cage is parked near a skate park in Denver, Colo., to make a point about the lack of science on marijuana. Richard Feldman Studio/Sukle Advertising and Design hide caption

Several contestants in this year's Miss America pageant chose domestic violence as their platform topic. Mel Evans/AP hide caption