BMC Med March 2023 PMID 36882739

Water intake, hydration status and 2-year changes in cognitive performance: a prospective cohort study.

Stephanie K Nishi, Nancy Babio, Indira Paz-Graniel, Lluís Serra-Majem, Jesús Vioque, Montserrat Fitó, Dolores Corella, Xavier Pintó, Aurora Bueno-Cavanillas, Josep A Tur, Laura Diez-Ricote, J Alfredo Martinez, Carlos Gómez-Martínez, Andrés González-Botella, Olga Castañer

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Mentions

Peak: 44 in Mar 2023

across 5 sources since Mar 2023

Extended reach

339,273

potential audience

Total likes

229

Video views

15,093

Mentions per month

Mar 2023 – Aug 2025

Where it's discussed

X / Twitter66 posts
News23 articles
YouTube2 videos
Facebook2 posts
Bluesky1 posts

AI synopsis

What people are saying

Several discussions emphasize the findings, such as statements highlighting how reduced hydration leads to cognitive performance decline, and other comments prompt readers to reflect on their own water intake habits. The use of phrases like 'essential for ALL functions of our body' and 'intriguing study findings' creates a tone of urgency and importance, suggesting a strong community interest in cognitive health linked to hydration.

AgreementModerate agreement

The majority of discussions support the findings of the study, highlighting the link between hydration and cognitive performance.

InterestHigh interest

Posts indicate a strong curiosity about hydration and its implications for cognitive health.

EngagementModerate engagement

While many discussions touch on the study's results, a few delve deeper into potential causation and further implications for health.

ImpactHigh impact

Many participants believe that the findings of this study could significantly influence public health awareness regarding hydration.

Abstract in brief

This study investigates how water intake and hydration levels affect cognitive performance over two years in older adults at risk for cardiovascular disease.
Participants included 1957 adults aged 55-75 with obesity and metabolic syndrome, who underwent various assessments at the start and after two years.
Results indicate that more than half of the participants were dehydrated, and a lower hydration status was linked to declines in cognitive function over time.

Read the full abstract

All mentions

Understanding Water Intake and Cognitive Performance

How much water should you actually drink in a day? This video explores the crucial connection between hydration levels and cognitive performance. We delve into the science behind hydration and its impact on brain…

The Feed with Dr. G · Nov 20, 2024 15,068 views

Hydration Risks and Benefits for Seniors Over 50

Over 50, dehydration can be more dangerous than you think. This video highlights the 4 worst drinks that accelerate dehydration and 4 essential hydrating beverages to consume. Research links hydration levels to…

Senior Health Hub · Aug 31, 2025 26 views

Nobuhiro Ariyoshi MD

@AriyoshiMd · X

https://t.co/vCUcb90WMb

May 4, 2025 · 5,229 followers View post →

RGU Library

@rgulibrary.bsky.social · Bluesky

Nishi, S.K. et al. (2023) 'Water intake, hydration status and 2-year changes in cognitive performance: a prospective cohort study', BMC medicine, 21(1), pp. 82–17. Available at: doi.org/10.1186/s129... (Accessed: 3 December 2024).

Dec 3, 2024 View post →

Samir Gupta

@SammyG_MD · X

Are You Drinking Enough Water?!

Nov 21, 2024 · 2 likes · 5,033 followers View post →

Dr. Samir Gupta

@TheFeedWithDrG · X

Are You Drinking Enough Water?!

Nov 20, 2024 · 1 like · 163 followers View post →

Jodi Imansyah☺

@Jodiimsyh · X

RT @H4HInitiative:

Oct 24, 2024 · 1 share · 330 followers View post →

INNOVADIETA

@INNOVADIETA · X

Water intake, hydration status and 2-year changes in cognitive performance: a prospective cohort study - https://t.co/gcEjWnuzai https://t.co/jjqyK5FpO5

Oct 10, 2024 · 1,367 followers View post →

Hydration for Health

@H4HInitiative · X

Oct 10, 2024 · 16 likes · 1 share · 19,422 followers View post →

Mike Lustgarten, PhD

@mike_lustgarten · X

"Lower physiological hydration status (i.e., greater serum osmolarity) was associated with a greater decline in global cognitive function z-score over a 2-year period" https://t.co/moLaaBqD9b

Jul 9, 2024 · 2 likes · 9,724 followers View post →

Jemimah kyeyune

@KyeyuneJemimah · X

Intriguing study findings here: "reduced physiological hydration status is associated with greater reductions in global cognitive function". How much water do you drink daily? https://t.co/ICsFUrU6wT https://t.co/Xu2u75GP4V

Apr 26, 2024 · 2 likes · 41 followers View post →

Catherine Collins

@RD_Catherine · X

"Reduced physiological hydration status was associated with greater reductions in global cognitive function over a 2-year period in older adults". Again, correlation ≠causation, as people with cognitive decline may 'forget' to drink. #PREDIMED https://t.co/yZ2A8vBxuw

Apr 24, 2024 · 4 likes · 7,761 followers View post →

Jordi Salas Salvadó

@JordiSalasSalva · X

El hábito que no te puedes saltar si no quieres tener problemas de memoria ni cognitivos ✅Water intake, hydration status and 2-year changes in cognitive performance: a prospective cohort study https://t.co/EtLYm9Vbrg https://t.co/AP7DrbgzUh @CIBER_OBN @IISPereVirgili

Mar 13, 2024 · 2 likes · 1,956 followers View post →

Dr. Jessica Giddens DNP (nurse)

@DrJGiddensRN · X

https://t.co/LVM8HOuuJE

Jan 11, 2024 · 2,753 followers View post →

Gladys Aguilar S

@gladysa9 · X

RT @ibsGRANADA: #ProducciónCientífica #IBSGranada "Water intake, hydration status and 2-year changes in cognitive performance: a prospecti…

Dec 13, 2023 · 1 share · 417 followers View post →

ibs.GRANADA

@ibsGRANADA · X

#ProducciónCientífica #IBSGranada "Water intake, hydration status and 2-year changes in cognitive performance: a prospective cohort study" https://t.co/FlSySB72yy @universitatURV @IISPereVirgili @saludisciii @idibell @ULPGC @uabbarcelona @idisnanavarra https://t.co/pgxS1X1PiV

Dec 13, 2023 · 1 share · 11,027 followers View post →

Allergy Research Group

@ARGInnovation · X

Dehydration can compromise brain function. Study of older adults with ⬆️risk of CVD: Lower hydration was associated with⬆️decline in cognitive function over a 2-year period. https://t.co/5nBrQhwHep

Sep 9, 2023 · 568 followers View post →

CalerieLife

@CalerieLife · X

Drinking water is necessary & hydration is associated with cognitive function. A new study was done looking at water intake & mental function in older adults. Over 2 yrs reduced hydration, related to osmality was connected to reduced cognitive function. https://t.co/SgUe77o5K6

Jun 19, 2023 · 66 followers View post →

Sociedad Española del Dolor

@Sedolor · X

RT @LauraIArranz: Beber agua para estar bien hidratado es esencial para TODAS las funciones de nuestro organismo, también para reducir el d…

Jun 17, 2023 · 5 shares · 14,192 followers View post →

Gana Nutrición

@GanaNutricion · X

RT @LauraIArranz: Beber agua para estar bien hidratado es esencial para TODAS las funciones de nuestro organismo, también para reducir el d…

Jun 16, 2023 · 5 shares · 2,005 followers View post →

Laura Isabel Arranz

@LauraIArranz · X

RT @LauraIArranz: Beber agua para estar bien hidratado es esencial para TODAS las funciones de nuestro organismo, también para reducir el d…

Jun 16, 2023 · 5 shares · 2,468 followers View post →

Pilar HM

@phernandezmateo · X

RT @LauraIArranz: Beber agua para estar bien hidratado es esencial para TODAS las funciones de nuestro organismo, también para reducir el d…

Jun 15, 2023 · 5 shares · 353 followers View post →

Laura Isabel Arranz

@LauraIArranz · X

Beber agua para estar bien hidratado es esencial para TODAS las funciones de nuestro organismo, también para reducir el dolor y mantener una buena función cognitiva

Jun 15, 2023 · 13 likes · 5 shares · 2,468 followers View post →

Hydration for Health

@H4HInitiative · X

@steph_nishi from @universitatURV @IISPereVirgili & coll. have shown: ⬇ physiological #hydration status was associated to ⬆ reductions in global cognitive function over a 2-year period in older adults with metabolic syndrome and overweight or #obesity https://t.co/BH7LoOeimR https://t.co/4xXWVTcraD

Apr 20, 2023 · 1 like · 19,422 followers View post →

Jesús F García-Gavilán, PhD

@JFGarciaGavilan · X

RT @steph_nishi:

Apr 3, 2023 · 4 shares · 70 followers View post →

Ángel

@nnbb9374794 · X