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CBS News medical correspondent Dr. Jennifer Ashton answers viewer questions on everything from torn knee ligaments, to keeping your dry hands smooth, to getting your child to stop sucking their thumb.

New research has found a link between dietary supplements and a slightly increased risk of death in older women. Erica Hill and Chris Wragge talk to CBS News medical correspondent Dr. Jennifer Ashton.

A new study, called the DIAN study, is following multiple generations of family members across the globe with early-onset Alzheimer's disease. CBS News contributor Priya David Clemens reports on a Seattle family that is providing never-before insights into the disease's first signs

Ray Martin, from CBS MoneyWatch, talks to Erica Hill and Chris Wragge about how to manage health care costs and how to choose the best plans for you and your family.

The trial of Dr. Conrad Murray, the physician charged in Michael Jackson's death, has opened in a Los Angeles court.

"Dolphin Tale," the true story of an injured Fla. dolphin who is fitted with a tail prosthesis, hits theaters this week.

CBS News medical correspondent Dr.

A landmark study on cancer in the U.S. is showing where we stand in the fight against the country's No. 2 killer.

British doctors have successfully separated twin girls who were born joined at the head. The sisters shared blood supply to their brains - giving surgeons a difficult challenge. CBS News correspondent Tina Kraus reports.

CBS News correspondent Michelle Miller reports on a program developed by a pediatrician at Bronx hospital that provides alternative therapies for children diagnosed with cancer in order to help them cope with the anxiety, fear and pain.

CBS News correspondent Elaine Quijano reports on a new study that compares the health lifestyles and problems of rural and urban residents.

The PGA Tour, NBC and CBS announced a TV rights extension through 2021,

The amounts of the common protein, gluten, in "gluten-free" items now on store shelves can vary widely. But now, the FDA is about to impose a strict new standard for what can be labeled "gluten-free." CBS News correspondent Elaine Quijano reports.

CBS News investigative correspondent Sharyl Attkisson reports on the rise of lab-made drugs, which can have more powerful effects than their organic cousins.

CBS News medical correspondent Dr. Jennifer Ashton answers health questions from viewers. This week: dementia, allergies and sleep issues.