Do we really need to gulp down eight glasses of water a day – or is it a myth? We ask an expert
Sorry Stanley cup devotees, the environmental physiology professor Lewis Halsey at Roehampton University says there has been an “overselling of concerns” about consuming enough H2O.
“It’s a tricky one,” Halsey says. “Obviously people can become dehydrated. We are set up to have quite a high water turnover rate: we sweat it out to keep cool, and we therefore need to recover those fluids. However, we can, at least in the short or even medium term, lose quite a lot of fluids and be fine.”
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