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It's well-known that chemotherapy often comes with side effects like fatigue, hair loss and extreme nausea. What's less well-known is how the cancer treatment affects crucial brain functions, like speech and cognition.

For Yolanda Hunter, a 41-year-old hospice nurse, mother of three and breast cancer patient, these cognitive side effects of chemotherapy were hard to miss.

"I could think of words I wanted to say," Hunter says. "I knew what I wanted to say. ... There was a disconnect from my brain to my mouth."

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Now, if you have BlackBerry at the bottom of the drawer, it turns out it's also at the bottom of the 2012 list of smartphone makers.

Our last word in business is: Bad Call.

The company that makes BlackBerry, Research in Motion, had only 5 percent of the global smartphone market in 2012. That was down from 11 percent the year before. That's according to the market research firm iSuppli. Also in the 5 percent club: Nokia and HTC.

That's the business news on MORNING EDITION, from NPR News. I'm David Greene.

A major storm system is causing havoc for travelers trying to get home from their holiday destinations. Powerful winds and blizzard conditions have hit parts of the U.S.