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Isaac Newton has been described as the father of modern science. What is less well known is that he had mental health problems. Here, the authors aim to review the literature on his problems and life to see if he was a mental health recovery hero.

The paper reviewed all the published papers on Newton's mental health problems, as well as many of the biographies written on him.

Scholars of Newton have focussed most of their attention on Newton's breakdown of 1693. This has been attributed to mercurialism or paranoid psychosis. The more likely explanation is depression or bipolar disorder. Personality factors are also critical in understanding Newton; he had a troubled upbringing and problems in relating to others. The latter enabled him to focus exclusively on his research and experiments and may have contributed to his greatness.

The authors have brought to bear their insights as a professional historian and as a clinical psychologist, giving this paper a unique perspective from previous uni‐disciplinary reviews.

Summarizes some of the most relevant toxicological aspects from the UNEP/IRPTC′s Scientific Reviews of Soviet Literature on Toxicity and Hazards of Chemicals, No. 117 Organomercury compounds, Geneva/Moscow 1990, and outlines their uses and environmental fate and pathways in a number of species and matrices. Of special interest are the toxic effects during pregnancy and to nursing mothers and their offsprings. Effects upon farm animals, foodstuffs, building facrics are indicated, together with recommendations for their prohibition. Their persistence in the environment is stressed.