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.

Ultramarathon running: how safe is the sport?

By Lindsay Bottoms, Reader in Exercise and Health Physiology, University of Hertfordshire

The deadly toll of last month's mountain race in Gansu province, China, has shaken competitors and fans alike. But is the sport dangerous?

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