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United States

Kerry Grens

Jeff Mason is a White House Correspondent for Reuters and the 2016-2017 president of the White House Correspondents’ Association. He was the lead Reuters correspondent for President Barack Obama's 2012 campaign and interviewed the president at the White House in 2015. Jeff has been based in Washington since 2008, when he covered the historic race between Obama, Hillary Clinton and John McCain. Jeff started his career in Frankfurt, Germany, where he covered the airline industry before moving to Brussels, Belgium, where he covered the European Union. He is a Colorado native, proud graduate of Northwestern University and former Fulbright scholar.

Twitter handle: @jeffmason1

Aug 12 2013

Kids may not offset extra exercise at school

NEW YORK (Reuters Health) - Children who exercise at school don't make up for the extra effort by being less active at home, according to a new U.S. study that used accelerometers to track kids' activity levels.

Aug 09 2013

Fresh, unprocessed baby foods tied to less allergy

NEW YORK (Reuters Health) - Babies who ate more fruits and vegetables and fewer packaged foods were less likely to develop food allergies in a new study that looked at overall diet patterns instead of just specific foods.

Aug 01 2013

More fit patients likelier to survive heart bypass

NEW YORK (Reuters Health) - People in better shape heading into bypass surgery are less likely to die shortly following the procedure than those who are less fit, according to a new study.

Jul 31 2013

HPV tied to higher esophageal cancer risk

NEW YORK (Reuters Health) - A new review of previous research links infection with human papillomavirus (HPV) to a three-fold greater chance of esophageal cancer.

Jul 30 2013

Siblings of disabled kids may have problems functioning

NEW YORK (Reuters Health) - Children who have a sibling with a disability are more prone than other kids to having troubles with relationships, behavior, schoolwork or recreational activities, according to a new survey of parents.

Jul 26 2013

Weedkillers tied to depression in farmers

NEW YORK (Reuters Health) - Farmers who used weedkillers were more than twice as likely to be treated for depression than farmers who didn't use the chemicals in a new study from France.

Jul 25 2013

Cardiac rehab may benefit oldest patients

NEW YORK (Reuters Health) - Exercise-based rehabilitation programs for heart patients are tied to health benefits even among the most elderly, according to a new study.

Jul 24 2013

No clear benefit of single incision surgery: ob-gyns

NEW YORK (Reuters Health) - Research so far has not found obvious advantages to minimally invasive surgery involving just one cut, according to a leading organization of women's doctors.

Jul 23 2013

Epilepsy drugs in pregnancy tied to kid's delays

NEW YORK (Reuters Health) - Women with epilepsy who take anti-seizure medication while they are pregnant are more likely to later report delays in their child's development and autism symptoms, according to a new study from Norway.

Jul 19 2013

Non-stick chemicals not tied to childhood growth

NEW YORK (Reuters Health) - Babies' early exposure to chemicals used in non-stick and stain-resistant products was not linked to small body size at age seven in a new study from Denmark looking at the chemicals' effects on growth.

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