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No glowing red nose required: Real reindeer don’t need Rudolph’s help to find the Arctic food they love most, new research shows. If you’re a reindeer, your go-to favorite food is a humble moss-like lichen called Cladonia rangiferina, explained researchers at Dartmouth College in Hanover, N.H. Trouble is, in the darkness of a northern winter…  read on >  read on >

An exhaustive review of sleep research spanning five decades underscores the importance of getting your Zzzzzs. Sleep loss undermines emotional functioning and increases a person’s risk for anxiety and depression, the study found. It also takes a toll on positive emotions like joy, happiness and contentment.   “In our largely sleep-deprived society, quantifying the effects…  read on >  read on >

Screens are everywhere — on desks, in laps, on the wall — and eye strain is a temporary but uncomfortable condition that comes with overuse. Folks spending too much time with screens can develop dry eyes, blurry vision, tearing or watering eyes, or a headache, warns the American Academy of Ophthalmology (AAO). That’s because humans…  read on >  read on >

Rum-laced eggnog, mulled wine, or a hot toddy all sound good around the holidays, but too much imbibing can increase your risk of “holiday heart syndrome,” doctors warn. Holiday heart syndrome is the unofficial name for a notable increase in patients seeking treatment in ERs for heart rhythm problems caused by too much booze around…  read on >  read on >

Chances are you know at least one person who’s given up eating gluten. Maybe you’ve even given it up yourself. But who can really benefit from a gluten-free diet? “Gluten is one of the main proteins found in wheat, barley and rye,” said Dr. Joseph Levy, a pediatric gastroenterologist at Hassenfeld Children’s Hospital at NYU…  read on >  read on >

Kids who’ve survived cancer face many health challenges, and a heightened risk for diabetes is one of them, new research shows. A team at St. Jude’s Children’s Hospital in Memphis, Tenn., reports that these children have twice the odds of developing prediabetes (a precursor to full-blown diabetes) compared to kids without any history of cancer.…  read on >  read on >