4 Your Health: Americans not flexing their muscles enough

Most Americans are not doing enough exercise to strengthen their muscles.
Americans are not spending enough time working out.
Health guidelines recommend at least two sessions a week of weight-lifting, push-ups, or other resistance training. But a new study finds three-quarters of Americans fall short of that goal and 60-percent do nothing at all.
People who did meet the standard had fewer chronic diseases, like diabetes, obesity, and cancer.
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