• The Flinch Response and The S.P.E.A.R. System
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    The Flinch Response and The S.P.E.A.R. System

    One of the most important things before you start practicing or thinking about the system is understanding the origin and the physiological basis of the S.P.E.A.R. system. Learn more about the startle flinch component of this survival system. A Personal Defense Network (PDN) original video.

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