Director / Editor: Victor Teboul, Ph.D.

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Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

An itching paradox – a molecule that triggers the urge to scratch also turns down inflammation in the skin

By Marlys Fassett, Associate Professor of Dermatology, University of California, San Francisco

Itch-sensing neurons in your skin are intertwined with your immune cells. Counterintuitively, the molecule that connects them triggers responses that both worsen and improve skin conditions.

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