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Sheryl Crow Believes Her Brain Tumor Was Caused By Cell Phone Use

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Sheryl Crow on the premiere of Katie Couric's new show 'Katie' on September 10, 2012.  

Sheryl Crow is blaming her excessive cell phone use for the development of her benign brain tumor, which doctors discovered earlier this year.

The 50-year-old singer appeared on Katie Couric's new talk show, Katie, Monday and opened up about what she believed caused her tumor.

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"There are no doctors that will confirm that. [But] I do have the theory that it's possible that it's related to that," Crow told Couric, 55. "I [used to spend] hours on the old archaic cell phones."

The single mom of sons, Wyatt, 5, and Levi, 2, said her tumor is located near the the place she holds a phone. Crow revealed the surprising news of her brain tumor to fans on June 5 to the Las Vegas Review Journal.

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She was first alerted to her tumor when she began forgetting lyrics to her popular songs. "I [was] worried I had an early [onset] Alzheimer's," Crow, who was treated for breast cancer in early 2006, explained to Couric.

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Crow reassured fans after her diagnosis that there is no reason to worry about her brain tumor. "It's a non-cancerous growth," she wrote on her Facebook page. "Really appreciate everyone's love and concern, I feel so blessed to have the support of all my fans, but I'm good — really!"

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