Dr C Vyvyan Howard, MB ChB, PhD, FRCPath, has recently retired as Professor of Bioimaging, Nano Systems Biology, Centre for Molecular Biosciences, University of Ulster.
Vyvyan Howard is a medically qualified toxico-pathologist with expertise on the effects of toxic substances on the foetus and infant during the developmental period of life.
He is a past president of the International Society of Doctors for the Environment, which is a World Health Organisation and United Nations recognised NGO representing some 30,000 medical doctors around the world. He has also served on UK Government regulatory committees, including six years as a toxicologist on the Advisory Committee on Pesticides.
Vyvyan states that there is scientific evidence to support nervous system damage by fluoride both via a direct neurotoxicological mechanism or by an indirect endocrine disruption mechanism and that observed epidemiological deficits in human IQ could be as the result of both mechanisms.
It is his opinion that in humans there is an indirect mechanism for fluoride developmental neurotoxicity through maternal thyroid hormone disruption that is more likely to predominate and therefore be demonstrated at the population level. and that this is primarily because of the exquisite sensitivity of the human brain to minimal hypothyroidism.
As an international expert on the link between environmental hazards and cancer, Vyvyan Howard strongly urges caution in several matters such as water fluoridation.
A brief video by Dr Vyvyan Howard on fluoride in drinking water can be seen at: https://www.bing.com/videos/search?q=vyvyan+howard+fluoride+video&view=detail&mid=B30BE352654622CA5740B30BE352654622CA5740&FORM=VIRE