Andy Blow is a Sports Scientist and the founder of Precision Hydration.

Andy was formerly an elite-level triathlete who can count a couple of top-10 IRONMAN finishes and an Xterra Age-Group World title to his name.

It was during his racing career that he discovered how individualised fluid and electrolyte replacement can make such a big difference to performance, and this led to him setting up precisionhydration.com - a company that specialises in sweat, dehydration, cramping, electrolyte replenishment, and helping athletes better understand their own hydration needs.

We've known Andy for a few years and have enjoyed watching the growth of PH in that time. We discuss the science behind optimal hydration, what those athletes at the top of their sport are doing and getting things right (and wrong) on race day.

Andy has a BSc (Hons) degree in Sport and Exercise Science from the University of Bath, UK.

He currently lives in Christchurch, Dorset in the UK with his wife Lucy and their 2 young children Bobby and Bethany.