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Loneliness is an epidemic in the United States. Our expert explains this distressing state and shares ways to help yourself and others.  

Rumor has it sunglasses are good for your eyes, and sunglasses are bad for your eyes. Columbia ophthalmologist Tongalp Tezel separates fact from fiction.

Olive oil has a number of health benefits, but there are many different types to choose from at your local supermarket. We spoke with a registered dietician at Columbia to learn more.

Whether you’re bringing a dish or hosting a cookout, there are lots of healthy options that don't sacrifice taste. Our nutrition expert picks these healthy recipes for her own summer grilling.