Alex Kerten has been researching anatomy and the physiology of behavior for over 30 years and treats clients with movement disorders, specializing in Parkinson’s disease. Alex is the founder and director of the GyroKinetics Center in Raanana, Israel.

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David Brinn is the managing editor of The Jerusalem Post, Israel’s leading English newspaper. A native of Portland, Maine, he lives now in Ma’aleh Adumim, Israel.

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The book is also available in Spanish, Italian and Hebrew.