Cold season is coming. Most colds begin in late August or early September, increasing slowly for a few weeks, then remaining high until March or April. The increase may be due to the opening of schools and to cold weather, which prompts people to spend more time indoors and increase the chances that viruses will spread from person to person. Also the most common cold-causing viruses survive better when humidity is low—during the colder months of the year. Cold weather also may make the... [read more]