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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.
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.
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:
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.
Water intoxication is rare, but certain scenarios can increase the risk:
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.
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.
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.
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.
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.
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:
Older adults, whose thirst mechanisms may decline with age, should be proactive about maintaining hydration, especially during illness or hot weather.
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.
To avoid the dangers of overhydration:
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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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.
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.
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.
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."
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.
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.
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:
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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?
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.
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.
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.”
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.”
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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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.
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.
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.
Dosage varies depending on the patient and condition. Follow your doctor’s instructions carefully. The following information reflects general guidelines:
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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