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

Which GLP-1 meds have the most side effects? Study of 60,000 Facebook posts gives answers

Researchers analyzed nearly 60,000 public Facebook posts to identify real-world adverse events linked to GLP-1 receptor agonist (GLP-1 RA) medications. Gastrointestinal symptoms were most common, while mental health concerns and tirzepatide-specific side effects were also flagged.

28 Jul 2025

Addressing avoidable hospitalizations in terminally ill nursing home residents

Hospitalizations and emergency department (ED) visits can be distressing and costly for nursing home residents – especially those who are severely impaired or terminally ill. Despite their vulnerability, these individuals are frequently transferred to hospitals, even though up to 40% of such transfers over the past 25 years are considered potentially avoidable by health care professionals.

25 Jul 2025

Even grave errors at rehab hospitals go unpenalized and undisclosed

Rehab hospitals that help people recover from major surgeries and injuries have become a highly lucrative slice of the health care business.

15 Jul 2025

New noninvasive device tracks hydration levels using bioimpedance

With another hot Texas summer underway, the threat of dehydration always looms. Though this condition can range from inconvenient to life-threatening, it's tough to track.

14 Jul 2025

Children face similar risk of dehydration and hyperthermia in extreme heat as adults

New research from the University of Sydney has found that children are at a similar risk of dehydration and hyperthermia in extreme heat as adults, contradicting previous advice that children are more susceptible to heat-related illnesses.

11 Jul 2025

Fasting triggers neuroprotective changes that could delay dementia

Intermittent fasting could be a neuroprotective strategy, improving gut-brain axis function and reducing inflammation linked to neurodegenerative diseases.

11 Jul 2025

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