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Demi Lovato

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Demi Lovato's climb to stardom

Demi Lovato seemed destined for superstardom, tapped to be the next Disney child star to hit the big time, similar to Justin Timberlake and Britney Spears. Her ascent to the mainstream nearly collapsed owing to addiction and mental health issues. But she's claimed victory over substance abuse, and has continued her ascension in the pop world. She talks to Tracy Smith about sobriety and what played into her decision to become part-owner of the Los Angeles rehab center that saved her life.

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What overdosing does to the body

A representative for singer Demi Lovato has confirmed that the singer was recovering after being hospitalized for a drug overdose in Los Angeles. Emergency officials found the 25-year-old unconscious at her home just one month after she indicated in a new song titled "Sober" that she relapsed after six years of sobriety. Dr. Harshal Kirane, director of addiction services at Staten Island University Hospital in New York, joins CBSN to discuss what overdosing does to the body and how to help people battling addiction. Kirane has not treated Lovato.

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