In Brief: How do you know whether it’s flu?
It is not always easy to tell whether an oncoming illness is a cold or the flu, but the symptoms do differ, and this chart can help.
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It is not always easy to tell whether an oncoming illness is a cold or the flu, but the symptoms do differ, and this chart can help.
A nap in the afternoon can help a person regain mental focus and retain information better, and may help people who work night shifts remain alert.