Can You Drink Too Much Water?

Updated Dec 24, 2024 | 02:25 PM IST

SummaryDrinking excessive water can lead to water intoxication, causing symptoms like confusion, nausea, and seizures; severe cases may be fatal.
Can You Drink Too Much Water?

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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

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Can Catching The Flu Or COVID-19 Sharply Raise Your Heart Risk?

Updated Nov 18, 2025 | 02:00 AM IST

SummaryA major review shows flu and COVID-19 infections can sharply raise short-term risks of heart attacks and strokes, with influenza posing the highest danger in the first week and COVID-19 increasing risk for up to a year.
covid flu heart risk

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Contracting the flu, Covid-19, or similar viral infections can significantly raise the chance of serious heart problems, according to new research. A review of 155 academic studies by the Journal of the American Heart Association found that both influenza and Covid-19 may increase the likelihood of heart attacks or strokes by three to five times in the weeks following infection.

Catching The Flu Or COVID-19 Sharply Raises Your Heart Risk

A comprehensive review in the Journal of the American Heart Association, which analyzed 155 studies, highlighted the following short-term cardiovascular risks compared with individuals who are not infected:

Influenza (Flu): Within the first month after a confirmed infection, the likelihood of experiencing a heart attack can increase up to fourfold, while the risk of stroke may rise fivefold. The greatest danger occurs during the first week.

COVID-19: Following infection, the risk of heart attack or stroke roughly triples within 14 weeks, and this heightened risk may persist for as long as a year.

Long-Term Risks From Persistent Viruses

Viruses that last longer in the body, such as HIV, hepatitis C, and varicella zoster (shingles), may also increase the long-term risk of cardiovascular issues. Published by the American Heart Association, the study underlines vaccination as a key way to reduce these risks, particularly for those already at risk of heart disease.

Viral Infections and Heart Disease: What Is The Link?

Lead author Associate Professor Kosuke Kawai from the University of California explained: "It is well recognised that viruses like HPV and hepatitis B can cause cancer, but the connection between viral infections and other non-communicable diseases, like cardiovascular disease, has been less clear. Our research found both acute and chronic viral infections are linked to short- and long-term risks of heart attacks and strokes."

How the Study Was Conducted

The team systematically reviewed all published studies examining links between viral infections and heart attacks or strokes. Out of an initial 52,000 studies, only 155 met the strict criteria for design and quality. Findings revealed that the risk of a heart attack was four times higher and the chance of a stroke five times higher in the month after lab-confirmed influenza.

For Covid-19, individuals were three times more likely to experience a heart attack and three times more likely to suffer a stroke within 14 weeks of infection, with risks lasting up to a year.

Risks From HIV, Hepatitis C, and Shingles

People living with HIV had a 60% higher risk of heart attacks and a 45% higher chance of strokes over more than five years. Elevated risks were also observed for those who had hepatitis C or shingles.

Dr Kawai added: "While the long-term cardiovascular risks from HIV, hepatitis C, and shingles are lower than the short-term risk from influenza or Covid-19, they are still significant, especially because they last for years. Shingles alone affects about one in three people, which means a substantial number of excess cardiovascular cases at the population level."

Despite the results, the researchers noted limitations, as the study was observational rather than based on controlled trials. Nevertheless, the team highlighted vaccination as a potentially crucial tool for lowering heart-related risks.

Who Is Eligible for Flu and Covid-19 Vaccinations?

Flu shots protect against influenza, which can be life-threatening for some groups. The NHS offers these vaccines each autumn or early winter to people most at risk of severe complications.

From September 1, six primary groups were eligible:

  • Secondary school children (Years 7–11)
  • Children in clinical risk groups aged six months to under 18 years
  • Pregnant women
  • Children aged two or three years as of August 31, 2025
  • Children with certain long-term health conditions (six months to under 18 years)
  • Primary school children (Reception to Year 6)
From October 1, eligibility expanded to include:
  • Care home residents
  • Carers receiving Carer’s Allowance or main carers of elderly/disabled individuals
  • People living with immunocompromised individuals
  • Frontline health and social care workers
  • All adults aged 65 and over
  • Adults aged 18–65 with long-term health conditions
For Covid-19, health authorities also advise that certain groups receive a winter vaccination this year.

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Why Are Food Recalls Suddenly Hitting US Supermarkets – Could Your Grocery Cart Be At Risk?

Updated Nov 17, 2025 | 06:00 PM IST

SummaryRecent weeks have seen a surge in U.S. food recalls, from eggs and chicken to pasta and shrimp. Experts explain that this rise is driven by improved detection and stricter safety standards, not necessarily declining food quality. Learn which foods carry higher contamination risks, the potential health effects of consuming recalled products, and practical steps to protect your grocery cart and family.
food recalls in us

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From ground cinnamon to breakfast burritos, popcorn, and even pet food, food recalls in the U.S. seem to be appearing more often. Does this mean our food supply is becoming less safe? According to a report by compliance firm Sedgwick, the FDA and U.S. Department of Agriculture oversaw 294 food recalls in the first half of 2025. In the same period in 2024, the FDA had ordered the destruction of nearly 85 million units. USDA recalls impacted nearly 1.5 million pounds of food, almost three times more than last year.

Is this surge a sign that food production is failing, or does it reflect improvements in traceability? Perhaps the increase is due to better public access to information, allowing more recalls to be noticed. Or is U.S. food simply more contaminated than before?

Why Are Food Recalls Increasing In The U.S.?

The growing number of recalls has left shoppers worried about the safety of groceries. Experts, however, suggest that the increase doesn’t necessarily indicate declining food quality. Instead, it largely reflects advances in detecting contamination earlier and more efficiently.

As Lena Bakovic, MS, RDN, CNSC, from Live It Up explains, “The increase in the number of food recalls that we are seeing is likely largely due in part due to improvements in detection technologies, as well as generally stricter food safety testing requirements. Combined, these advancements help to provide earlier and more effective detection of potential contamination issues.”

Rather than showing a drop in quality, these recalls demonstrate that the system is working to protect public health. Improved testing and monitoring allow potential hazards to be identified and removed from shelves before reaching consumers.

Recent Food Recalls In The U.S.

In recent weeks, a number of U.S. food recalls have caught public attention. Over six million eggs from Black Sheep Egg Company were recalled due to possible salmonella contamination, impacting multiple states. Hormel Foods pulled nearly five million pounds of ready-to-eat chicken after metal fragments were discovered in food-service shipments. About 245,000 pounds of pre-cooked pasta, linked to a deadly listeria outbreak, were also recalled, causing several illnesses and deaths.

Frozen shrimp from various brands were removed over potential exposure to cesium-137, a radioactive isotope associated with cancer risk. More than two million pounds of Golden Island pork jerky were recalled after metal contamination was traced to a damaged conveyor belt. Additionally, ready-to-eat meals from meal-kit services like HelloFresh, Blue Apron, and Marley Spoon were pulled due to possible listeria contamination, which poses heightened risk to pregnant individuals, older adults, and immunocompromised people. Consumers are advised to discard or return affected products and consult healthcare professionals if needed.

Certain Foods Carry Higher Risks

Not all foods carry the same risk of contamination. Fresh produce, for example, is vulnerable because of its exposure during growth, harvesting, and transport. Packaged “ready-to-eat” meals can also be riskier because they bypass home cooking, a step that often eliminates harmful bacteria.

As Lena notes, “Some types of food are in fact more susceptible to contamination. Raw fruits and vegetables are examples of foods particularly in danger from microbial contamination due to their fresh condition, as well as exposure to potentially hazardous environmental influences. Additionally, food products which are commercially labelled and sold as ‘ready to eat’ can become more dangerous because they skip the at-home cooking process, which would likely eliminate any harmful pathogens in the first place.”

Health Risks of Consuming Recalled Food

The health effects of eating recalled food depend on the contaminant. Bacteria like salmonella or E. coli can cause nausea, vomiting, and diarrhea, while chemical or allergen contamination may trigger allergic reactions or other toxic effects that aren’t immediately apparent.

“The health consequences can really vary depending on the root cause of the contamination,” Lena explains. “Bacterial pathogens like salmonella or E. coli can produce foodborne illnesses inducing gastrointestinal symptoms such as nausea, vomiting, and diarrhea. If a contaminant is a chemical or an allergen, allergy symptoms or other, potentially unknown, toxic effects are a possibility.”

How to Keep Up With Food Recalls

Understanding recall classifications and keeping up with alerts can help protect your family from potentially harmful products.

In the U.S., food recalls are classified into three levels:

Class I: The most serious category, used when a product poses a significant health risk and could cause severe illness or even death. Examples include foods contaminated with bacteria like Salmonella or items with undeclared allergens.

Class II: Applies to products that may cause temporary or reversible health issues. For instance, yeast or mold contamination falls under this category.

Class III: The least serious, covering minor issues that are unlikely to harm but still break regulations, such as mislabeling—like placing a watermelon-flavored item in an apple package—without allergen concerns.

To stay updated, you can sign up for notifications on the FDA website or check Recalls.gov regularly. Be aware that alerts may include non-food products, so some filtering may be needed.

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Pantop 40 Safe For Short-Term Use, But Long-Term Use May Be Risky, Expert Warns

Updated Nov 17, 2025 | 04:00 PM IST

SummaryPantop 40 is widely used in India for acidity, but long-term use can cause vitamin deficiencies, weakened bones, kidney issues, and rebound acidity. Dr. Shagun Agarwal explains proper use and lifestyle changes to manage acid reflux effectively.
pantop 40 risk

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In India, Pantop 40 has become almost a staple in many households, often consumed daily as casually as a multivitamin, particularly by those over 40. People frequently turn to it to manage acidity, often without considering the possible long-term consequences. What seems like a simple fix, however, can quietly lead to serious health issues. Recently, Dr. Shagun Agarwal, MBBS, M.S., FNB Joint Replacement, shared an advisory on Instagram highlighting the importance of limiting Pantop 40 use.

What Is Pantop 40 or Pantoprazole?

Pantoprazole is a medication designed to treat conditions caused by excessive stomach acid. It is commonly prescribed for erosive esophagitis or heartburn linked to gastroesophageal reflux disease (GERD), where stomach acid flows back into the esophagus. It can also be used for Zollinger-Ellison syndrome, a rare condition in which the stomach produces too much acid.

As a proton pump inhibitor (PPI), Pantoprazole works by lowering the amount of acid produced in the stomach. It is available only with a doctor’s prescription and comes in forms such as packets, delayed-release tablets, or powder for suspension.

Risks of Long-Term Pantop 40 Use

Many people in India rely on Pantop 40 regularly, often treating it as completely harmless. After the age of 40–50, taking it has almost become a routine, without fully appreciating the potential health risks.

Dr. Agarwal explains that using Pantoprazole for long periods can cause serious complications. It may lead to deficiencies in vitamin B12 and magnesium, weaken bones and increase the risk of fractures, inflame the kidneys, trigger digestive problems like IBS, and most concerningly, cause rebound acidity, where acid reflux becomes worse once the medication is stopped.

It is crucial to remember that Pantoprazole is only a temporary fix. While it reduces stomach acid, it does not address the root causes of acidity or other digestive issues. Relying solely on the drug may bring short-term relief, but it cannot replace the benefits of healthy lifestyle adjustments.

Pantop 40: Recommended Dosage

Dosage varies depending on the patient and condition. Follow your doctor’s instructions carefully. The following information reflects general guidelines:

For erosive esophagitis:

  • Adults: 40 mg once daily for up to 8 weeks. In certain cases, your doctor may extend the duration.
  • Children 5 years and older weighing 40 kg or more: 40 mg once daily for up to 8 weeks.
  • Children 5 years and older weighing 15–39 kg: 20 mg once daily for up to 8 weeks.
  • Children under 5 years: Use and dose must be determined by a doctor.

For Zollinger-Ellison syndrome:

  • Adults: 40 mg twice daily initially, with possible adjustments as advised by the doctor.
  • Children: Use and dose determined by a doctor.

Lifestyle Changes Are Key

Dr. Agarwal emphasizes that many people rely on Pantop 40 to avoid changing their habits. Small, consistent lifestyle adjustments can have a significant impact on acidity. Eating smaller meals, avoiding trigger foods like coffee, fried, or spicy items, having dinner 2–3 hours before bedtime, and losing 5–10% of body weight can reduce acidity by nearly half, often without the need for long-term medication.

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