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Hello and welcome to the evidence from the BBC World Service.
I'm Claudia Hammond and in this series we take a single health issue and we delve deep into the research behind it with the help of an expert panel and our live audience.
Do say hello.
And today we are back in the gorgeous reading room at Wellcome Collection in London to talk about hydration,
water and health.
And two floors below us a brand new exhibition called Thirst in Search of Fresh Water has just opened and I looked round it last night and it is absolutely fascinating and I hope that some of you in the audience here today have had a chance to have a look too.
Now since we're in the UK and we're talking drink,
can I get a big cheers to this topic from the audience?
Very good and cheers to you too.
So the big question, how healthy are hydration habits around the world?
Are we drinking too much water or not enough and where is access to clean water an issue and how might this change in the future?
Well we have with us today Yael Velleman who is Director of Policy and Innovation at Unlimited Health where she focuses on how being able to get clean water can limit the spread of disease.
Welcome Yael.
And we have Anthony Acciovatti who is Professor of Architecture at Yale University in the United States.
Now his work on groundwater is in the exhibition that's on here right now and he's currently based in India.
And Neil Turner is a kidney expert or nephrologist and emeritus professor at the University of Edinburgh in Scotland.
Thank you all so much for joining us.
Great that you could be here.
But I'd actually like to start with our audience here