Among the speakers with a prime-time slot at the Republican National Convention in Tampa this week is South Carolina Gov. Nikki Haley. The speech could propel her into national politics.

The talk about Haley always mentions her gender, her age — 40 — and her race — Indian-American. She wears the labels proudly, and for $19.95 you can read all about them in her memoir Can't Is Not an Option. But there's another label Haley likes: fighter.

On Comedy Central not long ago, she mixed it up with fellow South Carolinian Stephen Colbert:

As extremely hot temperatures continue to hit much of the country, high school football teams are busy getting ready for the fall season.

Last year, five high school football players died of heat stroke. Across the country, experts are trying to prevent those kinds of tragedies.

At the University of Connecticut's Korey Stringer Institute, researchers study the effects of extreme heat on athletes.

If you're a student, you may have harbored the fantasy of learning lessons while you sleep. Who wouldn't want to stick on a pair of headphones, grab some shut-eye with a lesson about, say, Chinese history playing in his ears — and wake up with newly acquired knowledge of the Ming Dynasty?

Sadly, it doesn't work. The history lesson either keeps you from going to sleep, or it doesn't — in which case you don't learn it.

Say "adoption" and many Americans think "babies." The U.S. system was largely organized around placing infants, both from this country and abroad. It turns out that, by far, the largest number of adoptions in the U.S. is through the foster care system. That means toddlers, young children, even teens.

Yet many in the field say the system does little to help families cope with the special issues a number of these children will face, even years after adoption.