Dehydration

Dehydration is a condition caused by the loss of too much water from the body. Severe diarrhea or vomiting can cause dehydration.

What is Dehydration?

Dehydration is a condition that results when the body loses more water than it takes in.

Dehydration Signs and Symptoms in Children

Dehydration in the Elderly: Signs and Symptoms

How Does Mild Dehydration Affect the Body?

Latest Dehydration News and Research

Why young athletes should think twice before using supplements

Most supplement claims for young athletes are based on adult studies, posing risks. Tailored nutrition is crucial for their growth and athletic performance.

3 Jul 2025

Genetic bottlenecks limit the rise of pandemic cholera strains

A new study by the Genomics and Microbial Evolution Group at the Miguel Hernández University of Elche (UMH) together with the Department of Host-Microbe Interactions at St. Jude Children's Research Hospital in Memphis, USA, sheds light on one of the great enigmas of microbiology: why only certain strains of common bacteria become pandemic pathogens.

30 Jun 2025

Terahertz and sound waves enable needle-free blood sodium detection

In a new study, researchers demonstrated long-term, non-invasive monitoring of blood sodium levels using a system that combines optoacoustic detection with terahertz spectroscopy.

26 Jun 2025

Study: Intravenous rehydration ‘safe’ for severely malnourished children

Children with critical levels of malnutrition can be safely rehydrated intravenously, according to a new study that calls for a review of the existing global treatment guidelines.

24 Jun 2025

Hydration tips for active lifestyles in warmer weather

Exercising in the warmer weather is a welcome respite from winter, but summer workouts bring their own challenges, including dehydration.

21 Jun 2025

Instant coffee may damage your eyes, genetic study finds

Researchers used genomic and Mendelian randomization analyses in over 500,000 individuals to reveal a statistically significant causal link between instant coffee intake and increased risk of dry age-related macular degeneration (AMD). No such risk was found for ground or decaffeinated coffee.

17 Jun 2025

Minor complication rates higher among Black patients after bariatric procedures

Black patients are more likely to experience minor complications after metabolic and bariatric surgery than White patients, according to new study presented today at the American Society for Metabolic and Bariatric Surgery 2025 Annual Scientific Meeting.

17 Jun 2025

Expert review reveals how to fuel triathletes for optimal results

This systematic review synthesizes evidence from 35 studies to guide optimal nutrition, supplementation, and recovery for triathletes. The findings highlight the critical importance of glycogen balance, hydration, targeted supplementation, and ongoing education—especially for female athletes at risk of energy deficiency.

2 Jun 2025

Sudden cardiac death found to be a major risk among male bodybuilders

Sudden cardiac death is responsible for an unusually high proportion of deaths in male bodybuilders worldwide with the highest risk among professional bodybuilders, according to research published in the European Heart Journal today (Wednesday).

21 May 2025

New approach directly combats the progression of Alzheimer’s and ALS

Scientists at Northwestern University have developed a new approach that directly combats the progression of neurodegenerative diseases like Alzheimer's disease and amyotrophic lateral sclerosis (ALS).

14 May 2025

DNA strand separation requires more force in crowded cellular environments

By creating a more true-to-life representation of DNA's environment, researchers at Northwestern University have discovered that strand separation - the essential process a "resting" double helix undergoes before it can initiate replication or make repairs - may take more mechanical force than the field previously believed.

11 May 2025

Low testosterone linked to higher kidney stone risk in men, study finds

A large cross-sectional study in South Korea found that men with low testosterone levels (below 3.33 ng/mL) were significantly more likely to have kidney stones. This association held even after adjusting for age and metabolic risk factors, suggesting testosterone may play a protective role.

6 May 2025

Study highlights the importance of clean water and sanitation in controlling endemic cholera

Public health strategies, from vaccination to improving sanitary conditions, may have different impacts depending on whether a disease is endemic - persisting in a particular location for an extended period of time - or a new outbreak, because the dominant transmission routes may differ, according to a new study.

18 Apr 2025

Empa scientists create innovative hydrogel for simulating the human skin

Growing cells in the laboratory is an art that humans have mastered decades ago. Recreating entire three-dimensional tissues is much more challenging.

16 Apr 2025

Marathon running temporarily reduces brain myelin levels

Marathon running causes a temporary decline in brain myelin content, but levels return to normal within two months. This reversible change may reflect the brain tapping into myelin lipids as an emergency energy source during extreme exertion.

25 Mar 2025

Dry air exposure linked to dehydration and inflammation in human airways

In a recent, cross-institutional study partially funded by the National Institutes of Health, researchers report that healthy human airways are at higher risk for dehydration and inflammation when exposed to dry air, an occurrence expected to increase due to global warming.

17 Mar 2025

Tardigrade protein offers radiation protection for cancer patients

About 60 percent of all cancer patients in the United States receive radiation therapy as part of their treatment.

26 Feb 2025

Climate change is pushing up rates of kidney disease and urological cancers

Climate change is increasing the risk of urological diseases, including cancer and kidney conditions, while urological healthcare itself contributes to environmental harm through high carbon emissions.

29 Jan 2025

Study reveals gap between heart health monitoring and doctor sharing

Advances in technology have made it increasingly easier for people to self-monitor their heart health whether it's via a smart device on their wrist or finger or a blood pressure monitor. However, a new national survey commissioned by The Ohio State University Wexner Medical Center found that while many Americans use a device to monitor their heart, few share that data with their doctor.

22 Jan 2025

Climate change is fueling a neurological health crisis, experts warn

Research explores the profound impact of climate change on neurological health, focusing on how rising temperatures, extreme weather, and air pollution exacerbate conditions like epilepsy, stroke, and sleep disorders, while calling for urgent research and mitigation strategies to address these vulnerabilities.

21 Jan 2025