Fresh Air at 7

This interview was originally broadcast on May 22, 2012. David Alan Grier plays Sporting Life in the opera Porgy and Bess, which closes on Broadway next month. Porgy and Bess won two Tony Awards, including Best Revival of a Musical.

Linguist Geoffrey Nunberg wants people to take his new book, Ascent of the A-Word, seriously.

"I'd meet people when I was working on the book, and even academics — they'd say, 'What are you working on?' and they'd giggle. Or they'd say, 'You must have a lot of time on your hands,' " Nunberg tells Fresh Air's Terry Gross.

In Victor LaValle's new novel, The Devil in Silver, a man is mistakenly committed to a mental hospital where a buffalo-headed monster stalks patients at night.

The plausibility of a monster roaming the hospital's halls made sense, says LaValle, who has a personal connection to the mentally ill.

In The Real Romney, Boston Globe reporters Michael Kranish and Scott Helman examine Mitt Romney's political rise since 1994, when he ran for the U.S. Senate in Massachusetts. They explain how Romney shifted from supporting abortion rights to heavily courting social conservatives in the 2008 Republican primary.

Regina Spektor plays the piano so loudly, she has to convince piano tuners to adjust the instrument to her liking.

"It gets so loud that the strings reverberate in a certain way," Spektor says. "And I always want them to work on the voicing and to soften the hammers, and they get kind of argumentative with me — they're like, 'You're not supposed to play this loud.'"

Fresh Air Weekend highlights some of the best interviews and reviews from past weeks, and new program elements specially paced for weekends. Our weekend show emphasizes interviews with writers, filmmakers, actors, and musicians, and often includes excerpts from live in-studio concerts. This week:

This interview was originally broadcast on May 31, 2011. David Eagleman's Incognito is now out in paperback.

Your brain doesn't like to keep secrets. Studies at the University of Texas, Austin, have shown that writing down secrets in a journal or telling a doctor your secrets actually decreases the level of stress hormones in your body. Keeping a secret, meanwhile, does the opposite.