Named one of the best personal trainers in the country by "Allure" magazine, Karas lays out a plan that puts readers on the road to achieving energy beyond their wildest dreams.

The 7 Day Energy Surge 2010, Rodale Books, New York

ISBN-13: 9781605294797

Trade paperback

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The 7 Day Energy Surge 2009, Rodale Books, New York

ISBN-13: 9781605298801

Hardcover

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