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

Pop singer Madonna has opened up about knee damage caused by years of dancing in high heels.

The 67-year-old superstar said running and Ashtanga yoga also added stress to her joints, leaving her with “no cartilage” in her knee, according to Interview Magazine.

“I have a bad knee now. I have no cartilage in it, thanks to dancing for so long in high heels and running on pavement and doing Ashtanga yoga,” Madonna told the magazine.

“Up until a year ago, I was jumping on trampolines and doing dance cardio and doing a lot of what a doctor would call loading on my joints. Can’t do that anymore,” she added.

Madonna said she still works out regularly while listening to her new album Confessions II, but has had to modify her fitness routine to accommodate the injury.

The Queen of Pop said she now focuses on “Peloton bikes and the Versa Climber and high-intensity circuit training. I ride my bike outside a lot. I dance.”

Madonna has previously been open about her knee injury and its impact on her career. In October 2019, she postponed a scheduled Madame X show in Brooklyn, New York.

“It's Hard for Madame to admit that she is also a human being made of flesh and blood and she must rest for the next 3 days to insure full recovery for her knee,” she wrote on Instagram.

“I am not a quitter. This hurts me more than you can imagine. It's time to take those heels and fishnets off for a few days!”

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Can High Heels Affect Knee Health?

Knee osteoarthritis (OA), a leading cause of disability, is more prevalent in women than men. Wearing high-heeled shoes has been implicated as a potential contributing factor to the higher lifetime risk of osteoarthritis in women.

Several studies have examined the relationship between high heels and knee health. Motion analysis studies have shown changes in knee alignment while walking in heels, changes that researchers have suggested may resemble patterns seen in ageing and knee osteoarthritis progression.

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A 2025 study published in The Knee by researchers from the Singapore Institute of Technology found that wearing 8-cm high-heeled shoes significantly reduced the lateral joint space width of the knee in healthy young women during standing, suggesting increased lateral knee joint stress.

The findings suggest that high heels may specifically affect the lateral compartment of the knee, potentially contributing to increased joint stress during standing.

Wearing heels for long periods can increase the load on the knees. They alter posture and walking patterns, placing additional pressure on the knee joint. Over time, this may strain the ligaments and muscles surrounding the knee, leading to pain, stiffness, and long-term damage.

In 2025, the Nicki Minaj Challenge, inspired by the rapper's 2013 song High School, gained traction on social media. The challenge, which involved balancing in high heels, reportedly resulted in injuries including fractures and, in some cases, deaths.

Most people pay little attention to their knees, legs and ankles until something goes wrong. Once pain sets in, even simple things like walking, climbing stairs, or standing for long can become a real challenge. Left unmanaged, lower limb pain gradually affects mobility, independence and quality of life.

What Is Usually Behind the Pain?

Knee pain commonly traces back to osteoarthritis, ligament injuries, cartilage damage, or years of wear. Pain in the leg can be caused by muscle injuries or conditions involving nerves and poor blood flow. The pain in the ankle is commonly caused by sprains, tendinitis, arthritis, or any injury that may have occurred earlier without complete healing.

Age, obesity, sedentary lifestyles, and constant joint injuries contribute silently to the degenerative condition of the joints.

Signs That Should Not Be Ignored

Persistent pain, swelling, stiffness, or discomfort that keeps getting worse deserves attention. If pain is disturbing your sleep, that is a clear signal to see a doctor.

Habits That Help Protect Your Joints

Walking downstairs puts considerable pressure on the knees, so limiting stair use where possible is sensible. Squatting, sitting on the floor and using Indian-style toilets place similar strain and are better avoided.

Staying active matters just as much. Regular household chores, walking, stretching and strengthening exercises, even 15 to 20 minutes a day, keep muscles strong and reduce the load on joints. Focusing on the adductor muscles around the knee is particularly effective in improving joint support.

Non-Surgical Options Worth Knowing

Surgery is not always the answer. Two non-surgical treatments carried out by a pain physician can make a meaningful difference.

Platelet-Rich Plasma therapy, or PRP, involves concentrating platelets from the patient's own blood and injecting them into the affected joint. In osteoarthritis, where cartilage gradually thins, PRP may help support regeneration and ease symptoms.

Radiofrequency Ablation, or RFA, uses a specialized needle to deliver targeted heat that interrupts the nerves responsible for sending pain signals to the brain. Relief typically lasts one to two years. The procedure is done as day care with no cuts, no stitches and no anesthesia required.

A concern many patients raise is that pain stops them from exercising or losing weight. Once pain is controlled through these treatments, walking and light activity become manageable again, which in turn supports weight loss and takes further pressure off the joints.

Custom Knee Supports

Off-the-shelf knee caps have limited effectiveness. A custom-made support, designed to redistribute body weight and reduce joint stress, works considerably better, especially in early arthritis. Many patients notice relief shortly after wearing one. They are an investment, but a worthwhile one that can reduce dependence on medication while the surrounding muscles gradually strengthen.

When to See a Doctor

If pain has lasted several weeks, is worsening, or is getting in the way of daily life, it is time to consult a specialist. Early diagnosis and the right treatment can protect joint function, restore mobility and often avoid the need for surgery.

(By Dr. Aanchal Sharma, Pain Physician, Principal Consultant and Head of Department, Department of Pain Medicine at BLK MAX Hospital, New Delhi)

Doctors in Mumbai are reporting a simultaneous rise in Covid-19, H1N1, commonly known as swine flu, and other respiratory viral infections.

As per the doctors, there is up to a 30 per cent surge in cases of COVID-19 and H1N1 as well as viral infections in the city. The doctors attributed the surge in infectious diseases to seasonal changes.

“We are currently observing a 20-30 per cent surge in Covid-19 and H1N1 (swine flu) respiratory viral infections in the city, mainly due to seasonal changes, increased humidity, and exposure to crowded places,” Dr. Aniket Mule, Consultant Internal Medicine, KIMS Hospital Thane, told HealthandMe.

Dr. Amit Saraf, Director of the Department of Internal Medicine, Jupiter Hospital, Thane, reported a rise in influenza-like illness (ILI) in the hospital.

“There is a seasonal rise in respiratory infection cases in Mumbai. Most of the people have routine viral infections, and around 10-15% of the people who are coming to OPDs have been coming positive for influenza-like illness (ILI) due to the changing weather,” Dr. Amit told HealthandMe.

Dr. Rohit Deshpande, Consultant Internal Medicine, Lilavati Hospital and Research Centre in Mumbai, told HealthandMe that the hospital is seeing a rise in swine flu cases.

“On average, 7 to 8 cases are being detected in the OPD daily. Most patients present with symptoms such as fever, cough, body ache, and fatigue”.

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What Are The Symptoms?

The experts reported that the commonly seen symptoms include:

• persistent fever,
• dry or wet cough,
• sore throat,
• fatigue,
• body ache
• mild breathlessness

Who Is More Vulnerable?

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Dr. Amit noted that people with chronic illnesses, elderly people, pregnant women and young children are still more susceptible to complications.

Dr. Rohit noted that people with diabetes and those with conditions such as COPD, asthma and heart diseases are also at higher risk of infection.

How To Prevent?

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The experts noted that most of the cases now are mild and can be handled with timely consultation, rest and supporting care.

But older people, pregnant women, children, and those with pre-existing health conditions should take extra care. Those with an ongoing fever, cough, sore throat, breathlessness, or extreme tiredness should seek immediate medical advice, Dr. Aniket said.

“Simple preventive measures like hand hygiene, use of masks in crowded places, proper hydration and timely medical consultation can help a lot in reducing the risk of complications,” he told HealthandMe.

Preventive measures for the general population include:

• Avoid self-medication
• If you experience a persistent cough or breathing difficulties, consult a doctor regarding the need for anti-viral or anti-allergy medications.
• Get vaccinated every year to boost Immunity and reduce the risk of infection.
• Avoid crowded and dusty places, redevelopment areas, or places with pigeon droppings.
• Use hand sanitizer, wash your hands frequently and thoroughly, and wear a mask in crowded or dusty environments
• Do warm saline gargles with salt or betadine twice or thrice a day
• Take steam hydration if required too
• Maintain hydration to avoid weakness, fatigue, or headache
• To boost immunity - consume green leafy vegetables & Vitamin C-rich fruits along with Vitamin D supplements