NPR News

You know it because countless magazines have screamed it at you from the checkout line. Because the gym you walk past every morning is waiving its initiation fee. The holidays are over. It's time to get in shape. So pull on your gym shorts and tighten the laces on your running shoes.

Oh yeah, and don't forget your headphones. You're going to need some motivation, and nothing gets the job done like music. Need proof? We just happen to have some, courtesy of neuroscientist Robert Zatorre, who spoke with Morning Edition's Linda Wertheimer.

In 2008, Richard Bennett had been out of the Marines for nearly three years after being injured in Iraq. That's when he caught the attention of Craig Williams, who was looking for a partner to help expand his successful construction business in Norristown, Pa.

"I had developed a pretty solid construction company, and I wanted a partner," says Williams, 44. "As an African-American businessman, I wanted a young African-American soldier coming home. It seemed like a great opportunity to provide an opportunity."

Most of the Republican presidential candidates are focused on New Hampshire, which holds its primary next Tuesday.

But while former Massachusetts Gov. Mitt Romney began his day campaigning in New Hampshire, by the afternoon he was in South Carolina, which holds its primary Jan. 21.