Research suggests the common cold thrives in cooler temperatures. One recent study from Yale University found a seven-degree drop in ambient temperature can mess with your body’s ability to stop cold viruses from proliferating.
“Every time we’re exposed to infections, we try to counter this by secreting interferons, which are important for blocking viruses,” says Akiko Iwasaki, a professor of immunobiology at Yale School of Medicine. “We found that if you reduce temperatures from 37 to 33 degrees Celsius”—98.6 degrees to 91.4 degrees in Fahrenheit—“that change can dampen immune response and allow viruses to replicate more.”
Read the full article at TIME http://time.com/5198318/seasons-changing-sick-cold/