Andy Blow is a sports scientist with a degree in sports and exercise science from the University of Bath. An expert in sweat, dehydration and cramping, Andy previously worked as the team sports scientist for the Benetton and Renault Formula 1 teams, and remains an adviser to the Porsche Human Performance Centre. He specialises in electrolyte replenishment and founded the company he now runs, Precision Hydration. An elite-level triathlete in his younger days, Andy has finished in the top-10 of Ironman and Ironman 70.3 races, as well as winning an Xterra world title. Andy has also worked alongside Dr Raj Jutley, as well as other top sports scientists, to co-author a number of studies and books which have been published in BMJ Journals, the Journal of the International Society of Sports Nutrition and the Journal of the Endocrine Society.