-
People who opt for nonsmoking rooms in hotels with a partial smoking ban are not fully protected from harmful exposure to so-called "thirdhand" smoke, according to a new study.More >> People who opt for nonsmoking rooms in hotels with a partial smoking ban are not fully protected from harmful exposure to so-called "thirdhand" smoke, according to a new study.More >> New research suggests the dominant side of your brain may make the call on which ear you choose to use while talking on your cellphone.More >> New research suggests the dominant side of your brain may make the call on which ear you choose to use while talking on your cellphone.More >> Scientists report that they were able to improve the math-calculation skills of college students by buzzing their brains with doses of random high-frequency noise.More >> Scientists report that they were able to improve the math-calculation skills of college students by buzzing their brains with doses of random high-frequency noise.More >> As many as one in five American children under the age of 17 has a diagnosable mental disorder in a given year, according to a new federal report.More >> As many as one in five American children under the age of 17 has a diagnosable mental disorder in a given year, according to a new federal report.More >> Eye experts warn that the adhesives used to apply eyelash extensions can cause allergies and infections.More >> Eye experts warn that the adhesives used to apply eyelash extensions can cause allergies and infections.More >>
-
New research suggests the dominant side of your brain may make the call on which ear you choose to use while talking on your cellphone.More >> New research suggests the dominant side of your brain may make the call on which ear you choose to use while talking on your cellphone.More >> Film star Angelina Jolie will have her ovaries removed to help lower her odds for ovarian cancer, People magazine reported Wednesday.More >> Film star Angelina Jolie will have her ovaries removed to help lower her odds for ovarian cancer, People magazine reported Wednesday.More >> Weight gain in men and women is predicted by two different genetic variations -- so-called polymorphisms, according to a new study from the Netherlands.More >> Weight gain in men and women is predicted by two different genetic variations -- so-called polymorphisms, according to a new study from the Netherlands.More >> The notion of wealthy "sugar daddies" with young, pretty wives and well-heeled "cougar" women with handsome, young husbands may be more fiction than fact, new research suggests.More >> The notion of wealthy "sugar daddies" with young, pretty wives and well-heeled "cougar" women with handsome, young husbands may be more fiction than fact, new research suggests.More >> Close to half of U.S high school students text while driving, a habit that dramatically increases their risk of getting into a potentially fatal car crash, a new study shows.More >> Close to half of U.S high school students text while driving, a habit that dramatically increases their risk of getting into a potentially fatal car crash, a new study shows.More >>
Thousands of teenagers in America are tormented about their weight. While becoming thin is often sweet revenge for them later in life, it often comes with a price.
Anorexia is an eating disorder that makes so thin they look hollow and weak. Many would blame the disease on the social pressures to be thin.
New research shows it could also be genetic. Family studies show that if you have a family member who has an eating disorder, you're between seven and twelve times at greater risk for developing an eating disorder yourself.
So researchers analyzed the DNA of family members with anorexia. They discovered two genes that likely play a role. Now the scientists want to find out specifically what these genes do, and if other genes are involved.
Doctors say anorexia patients tend to share certain personality traits, like anxiety and, obsessionality and perfectionism. Could the two genes help shape a personality that considers anorexia attractive?
For more information, log onto visit www.pbs.org-nova .
