People who don't get enough sleep show higher levels of inflammation say scientists who study colds. Smoking, chronic stress, and lack of exercise can make you more susceptible to the viruses, too.
Brenda Hummel and her 7-year-old daughter Andrea in their home near Des Moines, Iowa. Andrea was born with severe epilepsy and gets her health care through Medicaid.
Clay Masters/Iowa Public Radio
Donetta Held unloads needles and pipes confiscated from a contaminated meth home. She owns an environmental decontamination company and says meth tests are their most demanded service.