
Can working out fight off the flu?
January 17, 2013 5:38 AM
New evidence shows that exercise can not only help you stay healthy -- it can also keep you free of the flu. CBS News' Dr. Holly Phillips reports.
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At least 51 dead after tornado strikes outside Oklahoma City
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5/20: Deadly tornado strikes Okla.; Fmr. Cincinnati IRS office worker speaks out
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Oklahoma tornado as seen by storm chasers
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Survivors pulled from Okla. school hit by tornado
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Oklahoma tornado survivor: "Everything is gone"
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Okla. tornado survivor finds dog buried alive under rubble
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At least 51 dead after tornado strikes Oklahoma City suburb
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Storm spotter: Oklahoma tornado "a nightmare"
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Vine video shows devastation from OK tornado
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January 17, 2013 5:38 AM
New evidence shows that exercise can not only help you stay healthy -- it can also keep you free of the flu. CBS News' Dr. Holly Phillips reports.
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