Natural sunlight helps kill germs in your house, study shows

If you’re looking for easy, natural ways to combat cold and flu season, listen up. A study published in the journal Microbiome says that letting natural light pour into your home helps kill germs. You may remember Grandma claiming something of this nature. You may even have had an intuition. But there had not been much research to explain how or why this is the case inside, until now. Researchers at the University of Oregon set up a study of 11 dust-ridden, doll-sized rooms and observed what happened when indoor rooms were exposed to daylight through regular glass, UV light, or when the rooms were kept dark, NPR reports. Dust was collected from actual homes in Portland then the miniature room were let to collect dust from outside, all while researchers kept them at a normal room temperature. Dust can sit around your house for 90 days (even if you…