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

Naturopath and health educator Barbara O'Neill believes many of the foundations of good health are simple, inexpensive, and often overlooked.

In an interview with HealthandMe, she spoke about her journey into natural healing. Barbara said her interest began when she was looking for alternatives to repeated medication use for her children.

"I was pulled towards natural healing because I didn't want to give my children drugs," she said, recalling how her first child underwent four courses of antibiotics within six weeks.

That experience prompted her to explore other ways of managing common health issues such as earaches and discomfort.

On Ayurveda And Traditional Healing

Barbara said she sees similarities between her philosophy of health and Ayurveda. "I believe that there's a lot of similarities between what I believe," said the 72-year-old, adding that she supports approaches that work and do not cause harm.

While acknowledging that medicines can save lives in emergencies, she argued that long-term healing depends on creating the right conditions for the body.

"Yes, in a crisis, a drug may save a life, but drugs can't heal us. That's why it's time to go back to the old ways," she said.

According to Barbara, understanding how the body functions is key to understanding healing.

"When you understand how they function, then you begin to understand what they need. And if you give the body the right conditions, the healing will accelerate," she told HealthandMe.

The Healthy Habits

Barbara said that sleep, hydration, exercise, and natural foods are key to better health. She also called out modern lifestyles, which often encourage people to stay awake too late, particularly because of technology; and recommended getting enough sleep.

"Start going to bed earlier and aiming for eight hours sleep a night," she said.

Barbara also emphasized daily movement, whether through running, walking, push-ups, squats, or stretching.

"Every day, I make a point of moving my body," she said.

Why Barbara O'Neill Doesn't Take Supplements

At a time when supplements have become a multi-billion-dollar industry, Barbara revealed that she does not take any supplements herself.

"I take no supplements," she said, noting that she advocates focusing on fundamental health habits.

"What should be there instead is exercise every day, eating food in its natural state, drinking adequate water, and going to bed early," she said.

While she is not opposed to supplements, she believes they are often unnecessary.

"There are times where they may be necessary, but most of the time we don't need them," she added.

Natural Food And Stress Management

Barbara also encouraged people to eat foods in their natural state and suggested a simple dietary habit for Indians.

"Eat dal every day," she said.

For stress management, she said both sleep and meditation are important. She described beginning each day with prayer, reflection, and quiet time.

Barbara said that the human body has an innate ability to heal when supported by healthy habits.

"I want people to remember that they live in a body that can heal. So please look after it," she told HealthandMe.

Many working women who are pregnant tend to dismiss signs such as headaches, swelling, or vision changes, thinking that they are common during pregnancy. However, these issues can be caused by preeclampsia, a serious condition that requires timely attention, especially among busy working women.

What is preeclampsia?

Dr Prachi Sarin Sethi, Senior Consultant – Obstetrician, Gynaecologist & Laparoscopic Surgeon, Motherhood Hospitals, Gurgaon, said, "Pregnancy comes with many physical changes, and it is common for women to experience discomfort such as swelling, fatigue, or headaches. However, sometimes these symptoms may point to something more serious, namely preeclampsia, a pregnancy-related condition that can affect both the mother and baby. Working women tend to ignore the signs of this condition and struggle in silence. Preeclampsia is a condition that usually develops after the 20th week of pregnancy. It is mainly characterised by high blood pressure and can affect organs such as the liver and kidneys. If not managed in time, it can lead to serious complications for both mother and baby."

What are the causes of preeclampsia?

The exact cause of preeclampsia is not known. Certain factors increase the risk, including:

1. High blood pressure before pregnancy
2. First pregnancy
3. Multiple pregnancies (twins or more)
4. Obesity or diabetes
5. High stress levels and lack of rest

What are the symptoms of preeclampsia?

Many symptoms of preeclampsia are mistaken for normal pregnancy changes. These include:

1. Persistent headaches
2. Swelling in the face, hands, or feet
3. Blurred vision or light sensitivity
4. Sudden weight gain
5. Pain in the upper abdomen

Consequences of untreated preeclampsia

Working women may ignore these signs due to work pressure, long hours, or frequent travel, assuming they are just tired or stressed. If left untreated, preeclampsia can lead to serious complications such as:

1. Preterm delivery
2. Low birth weight of the baby
3. Organ damage in the mother
4. Seizures (a severe condition called eclampsia)

Early detection and proper care can help manage the condition and reduce risks.

This is why working women miss the signs

In today’s fast-paced lifestyle, many women continue working through pregnancy without slowing down. Long working hours, stress, irregular meals, and lack of rest tend to worsen symptoms. Many women delay check-ups or ignore warning signs, thinking they are minor issues.

What can women do?

Report any signs and symptoms, such as headaches and vision changes, to a doctor. De-stress by practising yoga and meditation. Monitor blood pressure regularly, avoid overexertion, and maintain a balanced diet consisting of fresh fruits, vegetables, whole grains, and pulses. Avoid junk, oily, and canned foods. It is also necessary to stay hydrated, attend regular health check-ups, and follow-up appointments.

Osteoarthritis (OA), long considered a “wear-and-tear” disease of old age, is increasingly being diagnosed in people as young as 30, according to new research.

The review by researchers at Indraprastha Apollo Hospitals suggests OA should be viewed as a heterogeneous syndrome rather than a single disease. The condition is driven by a combination of biological, biomechanical, metabolic, genetic, and molecular factors, but in youth obesity and poor lifestyle is surging the cases.

“Osteoarthritis is no longer confined to the elderly — we are now seeing patients as young as 30, often driven by obesity and sedentary lifestyles. This research makes clear that osteoarthritis is not a single disease but a spectrum of conditions,” said Dr. (Prof.) Raju Vaishya, Senior Consultant Orthopaedic and Joint Replacement Surgeon, Indraprastha Apollo Hospitals.

Noting that a one-size-fits-all approach may not help, the expert stressed the need for personalized treatment that recognizes the specific phenotype in each patient.

Also read: Can Running Marathons Or Ultramarathons Raise Colon Cancer Risk? Study Sparks Concern

Six Disease Subtypes Identified

The review, published in International Orthopaedics, identifies six disease subtypes, including inflammatory, metabolic, and pain-sensitization variants. Researchers recommend MRI-based tools and biomarker panels to guide treatment decisions.

Emerging technologies such as AI-assisted MRI scoring and PET-MRI with 18F-NaF may also enable earlier detection and better patient classification, although wider clinical adoption will require standardized protocols and large-scale validation studies.

Osteoarthritis Burden Rising Worldwide

More than 500 million people worldwide live with osteoarthritis, accounting for 7.6 per cent of the global population. According to Global Burden of Disease estimates, prevalence has increased by 132 per cent over the past 30 years and is projected to rise by another 60 per cent by 2050.

Women, people with obesity, and those with previous joint injuries are disproportionately affected.

What Is Osteoarthritis And Its Symptoms?

Read More: Hepatologist Recommends 9 Most Effective Exercises For Better Liver Health

Osteoarthritis occurs when the cartilage that cushions the ends of bones gradually wears down, causing joints to become stiff, painful, and less mobile.

The disease commonly affects the knees, hips, and small joints of the hands, although it can occur in almost any joint.

Common symptoms include:

• Joint pain
• Joint stiffness
• Difficulty moving affected joints
• Swelling
• Joint tenderness
• A grating or crackling sensation during movement
• Pain and stiffness after periods of inactivity
• Enlarged or knobbly joints
• Reduced range of movement
• Muscle weakness or muscle loss

How To Prevent Osteoarthritis

Experts say maintaining a healthy weight, staying physically active, avoiding prolonged sedentary behaviour, and preventing joint injuries can help lower the risk of osteoarthritis.

One of the biggest challenges in osteoarthritis treatment is the “care gap.” Many patients are too young or not yet severe enough for surgery but may spend years relying on medications that relieve symptoms without addressing the underlying mechanics of joint stress.

Research suggest gait retraining — adjusting the way a person walks — could help bridge this gap. Unlike medication or surgery, gait retraining is non-invasive and may offer a sustainable long-term solution.

Currently, gait retraining often requires specialized tools such as motion-capture systems and pressure-sensitive treadmills. However, newer approaches, including smartphone-based video analysis and sensor-equipped “smart shoes,” are being developed to make the technique more accessible.

Experts caution against making major changes to walking patterns without professional guidance, as improper adjustments may place additional strain on other parts of the body.