Add Yahoo as a preferred source to see more of our stories on Google. Dry air can exacerbate sinus congestion, coughing, flakey skin, itchy eyes and snoring — and even affect the well-being of plants ...

For years, I was the person who slept with a window cracked, even in the coldest winter temperatures. While I love cozying up with my blankets at night, it was actually because my respiratory system ...

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