From controlling body temperature and flushing out toxins, adequate hydration plays a vital role in our general health and well-being, water is a life essential. However, while dehydration garners significant attention, overhydration, or drinking excessive amounts of water, is a condition that can have serious and sometimes fatal consequences.

Although it may sound bizarre since drinking water is said to be the solution for most health related problems it is important to recognize how much water is considered "too much" or the risks involved with being overhydrated can maintain a healthy balance.

What Is Water Intoxication?

Water intoxication, also termed hyperhydration, water poisoning or water toxemia, develops when an individual drinks much more water than the kidney can excrete. The main function of the kidneys in the human body is the processing and excretion of excess water. However, the human kidneys can process only up to 0.8 to 1.0 liters of water at a time. Drinking an amount that exceeds this may overwhelm the kidneys and put the electrolyte balance out of sync in the human body.

Electrolytes, especially sodium, are essential in maintaining fluid balance within and outside cells. Hyponatremia is the condition when sodium levels fall below 135 mmol/L, resulting from excessive water intake. This causes water to shift into cells, swelling them. In the brain, this can cause severe complications, including coma or even death.

Symptoms of Water Intoxication

The symptoms of water intoxication vary from mild to severe. Early symptoms are often similar to dehydration, which makes self-diagnosis challenging. Common symptoms include:

• Headaches
• Nausea and vomiting
• Muscle cramps or weakness
• Fatigue or drowsiness
• Confusion and disorientation

In more serious cases, water intoxication can cause seizures, loss of consciousness, or swelling in the brain. These complications can be fatal if left untreated.

A notable case occurred in 2007 when a woman participating in a water-drinking contest tragically died after consuming nearly two gallons of water in under two hours. More recently, actress Brooke Shields experienced a grand mal seizure attributed to excessive water consumption.

Causes of Water Intoxication

Water intoxication is rare, but certain scenarios can increase the risk:

1. Sporting Events and Endurance Training

These endurance athletes are prone to water intoxication, especially if they drink large amounts of water without replacing lost electrolytes. Hyponatremia usually happens during long races or marathons as individuals mistake fatigue and muscle cramps for dehydration and continue drinking water in excess.

2. Military Training

Overhydration among military personnel is usually due to severe physical activity in extreme environmental conditions. The total number of hyponatremia cases documented from 2007 through 2022 for the active duty in the United States exceeds 1,600, with a note to this problem on exertion-related overhydration.

3. Mental Health Conditions

Compulsive water drinking, known as psychogenic polydipsia, is linked with some mental illnesses such as schizophrenia and psychosis. People with these conditions tend to drink too much water, causing a hazardous electrolyte imbalance.

4. Drug Abuse

Drugs such as MDMA (ecstasy) raise the body temperature and make people thirsty, and at times, some people tend to drink excess water at events like music festivals. MDMA also leads to urine retention, thus exacerbating the dangers of water intoxication.

How Much Water Is Too Much?

The exact amount of water that causes intoxication varies from one person to another. However, drinking more than 1 liter of water per hour for several hours raises the risk. For healthy individuals, the risk of overhydration is low unless taking part in extreme physical activity or ignoring thirst cues.

Certain medical conditions, such as kidney or liver disorders, can impair the body's ability to process fluids, and even moderate water intake may be harmful. Similarly, certain medications, such as diuretics and antipsychotics, can affect the perception of thirst or fluid regulation.

How Much Water Is Enough?

The widely touted recommendation of eight 8-ounce glasses of water per day has little basis in fact. According to the National Academy of Medicine, a daily total fluid intake is about 15 cups (3.7 liters) for males and 11 cups (2.7 liters) for females, from beverage sources and from food. Usually, about 20 percent of daily hydration comes from foods such as fruits and vegetables.

A better rule of thumb is to listen to your body and drink water based on thirst. Use the color of your urine as an indicator:

• Light yellow urine indicates proper hydration.
• Dark yellow urine may indicate dehydration.

Older adults, whose thirst mechanisms may decline with age, should be proactive about maintaining hydration, especially during illness or hot weather.

Water Intoxication vs. Dehydration

The symptoms of water intoxication—such as headaches, fatigue, and muscle weakness—are similar to those of dehydration. If you are unsure which condition you are experiencing, seek medical attention immediately rather than self-treating with more water.

Preventing Water Intoxication

To avoid the dangers of overhydration:

• Drink water gradually throughout the day rather than consuming large amounts at once.
• Replace lost electrolytes post high-intensity exercise or heavy sweating.
• Consider using sports drinks or salty snacks to help replenish sodium.
• Keep track of fluid consumption during long-duration activities, and do not consume more water than the body is losing in terms of electrolytes.
• If on medications or have specific medical conditions, check with your doctor regarding the safety of drinking water.

For signs of severe water intoxication-including confusion, drowsiness, seizures, and loss of consciousness-customer is advised to seek medical assistance immediately. In the meanwhile, a salty snack would help to temporarily correct low sodium levels.

Hydration is important to health, but overhydration can be a serious risk; the secret is in finding a balance. Drink enough water to satisfy your body, but not so much that it overwhelms your system. Remember, water is life, but moderation keeps it that way.

Hyponatremia (low sodium level in the blood). National Kidney Foundation. 2023.

Water Toxicity. NIH. 2023

Exercise-Associated Hyponatremia: 2017 Update. Front Med (Lausanne). 2017

Update: Exertional Hyponatremia Among Active Component Members of the U.S. Armed Forces, 2007–2022

Billionaire entrepreneur Bryan Johnson, known for meticulously tracking his health and pursuing longevity, recently revealed that he has been diagnosed with Autoimmune Gastritis, an incurable autoimmune condition in which the body's immune system attacks the stomach lining.

Describing the disease on social media platform X, Johnson said: "My stomach is eating itself." He also noted that despite undergoing extensive medical evaluations over the years, the condition went undetected because autoimmune diseases often develop quietly, with symptoms that can easily be mistaken for everyday health issues such as fatigue or digestive discomfort.

According to the Centers for Disease Control and Prevention (CDC), autoimmune diseases occur when the immune system mistakenly attacks the body's own healthy cells and tissues, triggering inflammation and damage to organs or other body systems.

The burden of these conditions is significant. In May 2025, researchers from the Mayo Clinic and collaborating institutions estimated that nearly 15 million Americans are living with one or more of 105 recognized autoimmune diseases.

Symptoms Can Be Easy to Miss

Because autoimmune diseases often begin with vague, non-specific symptoms, they can remain undiagnosed for months—or even years.

Dr. Cory Rice, a US-based Functional Medicine physician, said these warning signs frequently go unnoticed until the disease has progressed.

"First and foremost, symptoms of autoimmune disease can come and go, and be on and off, or they can be more persistent in nature," he told Newsweek.

The Hidden Signs You Shouldn't Ignore

While symptoms vary depending on the various autoimmune conditions, several early warning signs are shared across many autoimmune diseases.

According to Dr. Rice, common symptoms include:

• Fatigue
• Low-grade fever
• Joint pain
• Unexplained rashes or hives
• Dry eyes and dry mouth
• Numbness or tingling in the hands or feet
• Mouth ulcers
• Increased sensitivity to cold temperatures

He said when people suffer from fatigue, "it is usually both profound and debilitating."

Dr. Rice explained that many people try to manage this overwhelming exhaustion by relying on caffeine and other stimulants, taking thyroid medications or hormone treatments, or opting for therapies such as intravenous infusions and vitamin B12 injections.

However, when an underlying autoimmune disease is responsible, these approaches often fail to provide lasting relief.

Why Autoimmune Diseases Are Often Diagnosed Late

One of the biggest challenges in diagnosing autoimmune diseases is that their symptoms overlap with those of many other medical conditions.

Johnson also said that "2-5 per cent of people have this (autoimmune disease). Likely more, because it hides".

Symptoms may also appear intermittently before becoming more persistent.

"It all depends on the disease process in play and the severity or progression of the disease itself in a particular person as to whether symptoms are more constant or intermittent," Rice said.

He added that many primary care physicians are not routinely trained to identify autoimmune diseases in their early stages. As a result, patients are frequently referred to specialists, including rheumatologists, only after symptoms have become more pronounced.

"Unfortunately, by this point, the autoimmune disease may already be far along in whichever parts of the body are impacted," he said.

Dr. Rice emphasized that recognizing symptoms early and obtaining a timely diagnosis can help slow disease progression and improve long-term outcomes.

The United States is currently experiencing one of its worst Cyclospora outbreaks in recent years, with health officials still unable to determine the source of the infections.

According to the latest data, the outbreak has spread across at least 18 states. Michigan has reported at least 1000 cases, emerging as the hardest-hit state. With around 40 hospitalisations, no deaths have been reported so far.

Cyclospora Outbreak In The US

The outbreak is being investigated by the U.S. Centers for Disease Control and Prevention (CDC), the U.S. Food and Drug Administration (FDA), and state health departments. Investigators have not yet identified a single contaminated food source.

Several other states have also reported rising case counts. New York City has confirmed hundreds of infections since May. Health officials believe the actual number of infections is likely higher because Cyclospora is not routinely tested for in people with diarrhea. Symptoms usually begin about one week after exposure and can last weeks if untreated.

Also read: Walked Through Floodwater Recently? 5 Things To Do After Reaching Home To Minimise Risk Of Infections

About Cyclospora

A Cyclospora infection can be mild or severe and may last for weeks or even months. It is typically treated with antibiotics. People with weakened immune systems, such as those with HIV/AIDS or cancer, are at greater risk of severe disease.

Cyclospora infection commonly causes:

• Prolonged watery diarrhea
• Severe abdominal cramps
• Fatigue
• Loss of appetite
• Nausea
• Weight loss
• Bloating

Health authorities in the US continue to advise people to wash fresh produce thoroughly, maintain good hand hygiene, and seek medical care if they develop prolonged watery diarrhea, especially if symptoms persist for several days.

Does India’s Monsoon Raise Risk Of Cyclospora?

While there is no indication of a similar outbreak in India, infectious disease experts say the country's monsoon season creates conditions that can facilitate the spread of intestinal parasites if food and drinking water become contaminated.

HealthandMe spoke to Dr. Devashish Desai, Consultant, Infectious Diseases at Ruby Hall Clinic, if India, too, faces a possibility of a parasitic infection like cyclospora, especially in monsoon season.

Dr Desai said, “The answer is yes. India's monsoon creates conditions that favour the spread of several water and food-borne infections, including Cyclospora. Heavy rainfall can contaminate drinking water sources and fresh fruits and vegetables with sewage or infected soil. Consuming raw salads, unwashed herbs, or untreated water significantly increases the risk of infection.”

Unlike bacteria, cyclospora parasites require time in the environment before they become infectious, meaning direct person-to-person transmission is uncommon. Instead, contaminated food and water remain the primary sources of infection. This makes maintaining hygiene from farms to kitchens essential for prevention.

The expert added, “Although Cyclospora outbreaks are not commonly reported in India, the environmental conditions during the rainy season make vigilance essential. Strong food safety practices, clean water, and good personal hygiene remain the most effective defences against this preventable parasitic infection.”

Although India has not reported a similar outbreak, experts say the current situation in the US is a stark reminder that food safety and sanitation become even more critical during the monsoon.

For millions of people living with diabetes, the condition is not managed in moments; it is managed in the countless choices made between moments. From planning meals and staying active to monitoring glucose levels and following treatment schedules, people living with diabetes make countless decisions every day that shape their long-term health.

In clinical practice, we often see that the success of treatment is determined not only by how effective a therapy is, but also by whether it can be realistically sustained over years and decades. This is why the future of diabetes care must move beyond advancing therapies alone and focus on developing treatment approaches that are simpler, more flexible, and designed around patients' lives.

Diabetes In India: A Growing Public Health Challenge

Despite being one of the most widely recognized health conditions today, diabetes is still often misunderstood as simply a condition of “high sugar levels”. In reality, it is a metabolic disorder that develops when the body either does not produce enough insulin or is unable to use insulin effectively.

While genetic factors play an important role, rapid urbanization, sedentary lifestyles, changing dietary patterns, and rising obesity have contributed significantly to its increasing prevalence. Today, nearly 101 million adults in India are living with diabetes, according to the ICMR-INDIAB study.

Why Early And Consistent Diabetes Care Matters

With diabetes, time itself becomes a critical risk factor; the longer a person lives with the condition, the more severely it affects multiple organ systems. Diabetes can affect the heart, kidneys and nerves, with complications developing silently over several years. While improvements in the management of key cardiometabolic risk factors such as blood pressure, lipids and glycaemia have helped improve outcomes in several areas, lifestyle-related factors continue to contribute to long-term risks. This highlights the need for early risk identification, timely intervention and continuous monitoring to reduce the long-term burden of disease.

The Daily Burden Of Living With Diabetes

The progressive nature of diabetes also means that care is not limited to clinic visits; it extends into everyday life. It requires individuals to make repeated decisions throughout the day, and this constant cognitive load can become overwhelming, often leading to treatment fatigue and difficulty in maintaining consistent control.

Thus, treatment adherence is one of the strongest determinants of diabetes control. Yet real-world adherence is shaped by multiple overlapping factors. Limited understanding of the disease and its often-silent progression, along with psychological challenges such as anxiety or depression, can affect a person’s ability to remain consistent with treatment.

At the same time, complex treatment regimens, polypharmacy and the long-term burden of managing a chronic condition can make adherence more challenging. Financial constraints, limited access to medicines, and gaps in regular follow-up and patient–provider communication further add to the difficulties of sustained diabetes management.

Together, these factors contribute to poorer glycemic control, higher complication rates, increased hospitalizations and reduced quality of life.

Innovations Are Transforming Diabetes Care

Recognizing the realities of living with diabetes, care has increasingly shifted towards approaches that balance clinical effectiveness with practicality in everyday life, with greater emphasis on long-term sustainability and individual patient needs. Supporting this shift is a new generation of innovations in diabetes care that is making it more personalized, flexible and easier to manage, including:

Continuous Glucose Monitoring (CGM) has helped shift focus from HbA1c alone to include dynamic measures such as Time in Range (TIR) and glucose variability, enabling more real-time, personalized adjustments.

Oral therapies such as DPP-4 inhibitors (gliptins) and SGLT2 inhibitors (gliflozins) have expanded treatment options by helping improve glucose control while supporting more personalized and holistic diabetes management.

Newer ultra-long-acting basal insulins and ultra-rapid-acting mealtime insulins have improved glycemic stability.

Once-Weekly Insulin: A New Option For Patients

More recently, innovative solutions like once-weekly insulin icodec have been available globally that offer a simplified regimen, reduced treatment burden and improved patient adherence. This weekly insulin is now approved and launched in India for adults living with diabetes. This novel therapy could potentially reduce the practical burden of treatment and make long-term management more achievable in real-world settings.

Ultimately, the future of diabetes care will not be defined by how strictly patients follow treatment schedules, but by how well treatment fits into their lives. When care is designed around patients rather than systems, adherence becomes more natural, outcomes improve more sustainably, and diabetes management becomes less about daily struggle and more about improving the quality of life for those with diabetes.