Toxic Chemicals These substances are hazardous to human health and the environment. In 2004 North American industrial facilities generated over 5 million tonnes of toxic chemicals as production-related pollutants and waste (see box). Despite this large amount, data for comparable industries and chemicals in Canada and the United States reveal encouraging trends. Over the period 1998–2004, total...

Narcosis is a nonspecific reversible state of arrested activity of protoplasmic structures caused by a wide variety of organic chemicals. The vast majority of industrial organic chemicals can be characterized by a baseline structure-toxicity relationship as developed for diverse aquatic organisms, using only the n-octanol/water partition coefficient as a descriptor. There are, however, many app...

The application of nutritional therapy for the treatment of mental illness has considerably advanced since the pioneering work of Abram Hoffer and his colleague Osmond on the nutritional treatment of schizophrenia using megadoses of vitamins, especially niacin. The clinical benefit of this work was given a significant boost in its theoretical underpinnings by the double Nobel Laureate, Linus Pa...