Sigal co-authored an editorial accompanying the new study, but wasn't involved in the current research.

CNN: Weights plus walking equals more fit in less time

You have been a most loyal son, husband to Sigal and father to Roy, 5, and Naomi, 3.

CNN: [Hagay Shefi]

We shall provide Sigal and your kids -- our beloved grandchildren -- the best of our love and care.

CNN: [Hagay Shefi]

"Unlike the DARE trial, they made a real effort to keep the total time involved the same" in the new study, Sigal says.

CNN: Weights plus walking equals more fit in less time

Sigal, chair and founder of Friends of Cancer Research.

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