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.

Can a tar-like substance that oozes out of Himalayan rocks really boost your testosterone levels?

By Daniel Kelly, Senior Lecturer in Biochemistry, Sheffield Hallam University

Shilajit has been used for thousands of years in Ayurvedic medicine, but are modern proponents right to claim that it raises testosterone levels?

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