The Benefits Of Pumping Iron Later In Life

03/17/2015 10:54 am ET
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When he hit 50, Tim Carrigan’s lower back started hurting so badly he could barely walk.

The injury, which dated to a childhood accident, had caused only occasional pain until Mr. Carrigan lost muscle tone with age. The pain dogged him for several years, but last year the Quincy, Mass., insurance-company treasurer started strength training twice a week on a circuit of a dozen machines.

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