Bacteria can cause illness and death, UW-Madison professor Timothy Paustian said on "The Larry Meiller Show," but they could also help us to sleep better or find the motivation to exercise. 

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“I can't stress enough the importance of working smoke detectors,” said Jason Knecht, a fire inspector with Eau Claire Fire Rescue. “Make sure you have them, but then check them and change the batteries.”

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Walking is certainly a healthy activity. Whether it’s a complete workout depends on your cardio fitness, said physical therapists (and sisters) Jill Thein-Nissenbaum and Lori Thein Brody. 

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