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 ...

If you’ve ever woken up with swollen sinuses and a scratchy throat, only to be miraculously cured by a steamy shower, your bedroom’s lack of humidity is likely to blame. If this happens regularly, ...