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Bob Barker, beloved host of The Price Is Right, recently made headlines by announcing his retirement after 35 years. "Barker irreplaceable!" blared the entertainment tabloids. And yet, Mr. Barker celebrated his 82nd birthday a few months ago.Eighty-two! Who really are the "seniors" among us? And what

The average age of Americans is increasing year-by-year. Approximately 77 million babies were born in the United States during the boom years of 1946 to 1964. In 2011, the oldest will turn 65, and on average can expect to live to 83. Many will continue well into their 90s. Most people continue to retain

Over the hill at age 65? Ready for the rocker at 70? Not these days. Americans are living longer and making more of their later years. One key is exercise. "Perhaps the most debilitating influence in people's health as they age is a sedentary life," said Dr. Jerome McAndrews, national spokesperson