At what percent dehydration does the speaker say cognitive ability begins to decline?

James LaughlinHigh-performance leadership and executive coach. Covering all aspects of life and career.

The SHOCKING symptoms of low-level DEHYDRATION... (you are probably dehydrated!!!)

28 Sept 2023 · 1 min

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0:34

A short conversational segment from a YouTube video by James Laughlin discussing how low-grade chronic dehydration harms short- and medium-term focus and productivity. The speaker lists common symptoms (headaches, constipation, brain fog) and states that even ~2% dehydration—an amount that can occur during the day—can impair cognition and cause brain fog.

Questions this video answers

About 2% dehydration.

Chapters

If we are low grade chronic dehydration, it can lead to the disease. What else can that be impacting short and medium term in terms of focus and productivity?
Yeah. Great question. So the things that we all kind of know, but I'm going to say again, so that we all remember, is things like headaches, constipation, brain fog. So think about cognition, brain fog, and performance. At, you know, the big number, Everybody throws out 2% dehydrated, which can happen to us very easily. At any point during the day, becoming 2% dehydrated, which is not a lot, we start to lose our cognitive ability. We start to get a little brain fog. So, you know, those are the big things.