Science Week Special - Fluid Dynamics: How Water Drives Performance

Science Week 2026 is nearly here (Nov 8th–15th) and this year’s theme is Water: from molecule to ocean — so we flipped the lens inwards to what’s going on inside your own body.

Terence and Calvin are joined by Professor Brendan Egan (DCU) to get stuck into hydration, what sweat and urine can actually tell you, and why “drink to thirst” might be the most boring (and best) advice going.

There’s chat about MMA weight cutting (hot baths, saunas, Epsom salts), electrolytes hype, carb cuts and “water weight”, ice baths vs hot soaks, sea swimming shock, cramp myths, and using sweat as a future performance bio-sensor.

A massive shoutout again to our sponsor, Science Week 2026, running nationwide from November 8th to 15th.

There are hundreds of free events, workshops, and talks happening all across the country for all ages. Make sure to check out scienceweek.ie to see what’s on near you, and follow @ScienceWeek on social media to stay in the loop.