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"It has been asserted that people clad in wool are better equipped to withstand stress, are less prone to respiratory diseases, have better body-temperature control, are more confident and self reliant because they are comfortable and at ease, crave cigarettes less, suffer significantly less from rheumatic and arthritic conditions, and need less sugar to keep them warm and comfortable and therefore can slim more easily. These claims are unsubstantiated."

Hatch, K. "Wool fibers." Textile Science. St. Paul: West Publishing Company, 1993. 149. Cites a 1984 book called Wool: Nature's Wonder Fibre.