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

People with hemophilia face an increased risk of poor bone health due to recurrent joint and muscle bleeds, joint damage and reduced physical activity. Experts told HealthandMe that preventing bleeds from childhood, alongside adequate nutrition, appropriate exercise and regular assessment, can help protect bone health throughout life.

Globally, an estimated 836,000 people have hemophilia, including approximately 284,000 with severe hemophilia. In India, the World Federation of Hemophilia (WFH) reported nearly 28,000 diagnosed and registered patients as of 2026, including more than 24,000 with Hemophilia A. However, the estimated prevalence could be as high as 1,36,000, suggesting many cases remain undiagnosed or misdiagnosed.

Childhood and adolescence are critical for building peak bone mass, making early intervention important for long-term musculoskeletal health, said health experts.

How Hemophilia Can Affect Bone Health

Hemophilia is an inherited bleeding disorder caused by a deficiency of clotting factor VIII (Hemophilia A) or factor IX (Hemophilia B). It primarily affects males, while women are often carriers.

Repeated bleeding into joints can cause chronic pain, joint damage, deformity and reduced mobility. Muscle bleeds can further restrict movement, limiting participation in physical activities that help maintain bone strength.

“Bone health begins in childhood, but protecting it is a lifelong commitment. In people living with hemophilia, recurrent joint and muscle bleeds, reduced physical activity and other risk factors can contribute to poor bone health and an increased risk of osteoporosis,” Dr. Varun Bafna, associate professor in the Department of Hematology at Chhatrapati Shahu Maharaj Government Medical College, Kolhapur, told HealthandMe.

Why Prophylaxis Matters

Prophylaxis involves preventive treatment to reduce bleeding episodes rather than treating bleeds only after they occur. Regular factor prophylaxis can help prevent recurrent joint bleeds, preserve joint function and support mobility.

“Regular factor prophylaxis helps prevent repeated joint bleeds and preserve joint function. That protection can support mobility, an important contributor to bone health,” Dr. Hitha B, associate professor and haematologist in the Department of Medicine at Government Medical College, Kozhikode, told HealthandMe.

She advised patients to discuss breakthrough bleeding or difficulties accessing treatment with their healthcare team so their treatment plan can be reviewed.

Dr. Bafna said consistent prophylaxis can also support muscle strength and safer participation in physical activity.

“Prophylaxis is not just about preventing bleeding today; it is an important part of protecting long-term musculoskeletal health and quality of life at every age,” he noted.

How to Protect Bone Health From Childhood

Experts recommend an individualized approach based on age, joint health, mobility and other risk factors. Key measures include:

• Calcium and vitamin D: Ensure adequate intake through diet and discuss supplementation with a healthcare professional when needed.
• Appropriate physical activity: Weight-bearing exercises suited to individual joint health can help maintain bone strength, with guidance from the care team.
• Physiotherapy: Tailored rehabilitation can help maintain muscle strength, mobility and joint function.
• Regular assessment: Periodic evaluation can identify bone-health concerns and determine whether further investigations are needed.
• Consistent prophylaxis: Adhering to prescribed preventive treatment can reduce bleeding episodes and help protect joints.

A Multidisciplinary Approach to Lifelong Care

Hematologists, physiotherapists and other healthcare professionals can help patients and families integrate preventive treatment, rehabilitation, nutrition and appropriate physical activity into an individualized care plan.

Early intervention and consistent care can help preserve joint function, mobility and quality of life as people with hemophilia grow older.

A stroke rarely announces itself loudly. A sudden wobble, a blurry eye or a slightly lopsided smile is easy to ignore. But in a stroke, minutes decide how much of the brain survives.

On World Stroke Day, doctors want everyone to know one simple tool: BE FAST.

What Doctors Say

Dr. Abhinav Gupta, Director of Neurology at Sarvodaya Hospital, Greater Noida West, and Dr. Atampreet Singh, Senior Director and Head of the Institute of Neurosciences at ShardaCare, Healthcity, told HealthandMe, “Knowing the early warning signs of a stroke can shorten the road to full recovery,” they said.

The problem, they added, is that “a stroke’s symptoms can be easy to dismiss as minor inconveniences, like being tired or having weak muscles.”

What Is BE FAST?

BE FAST was developed by Intermountain Healthcare as an adaptation of the American Stroke Association’s FAST model, according to a Frederick Health handout. The doctors break it down like this:

• B – Balance: “Unsteady feeling or sudden lack of muscle control and dizziness can be a warning sign of a stroke.”
• E – Eyes: “Don’t overlook loss of sight in one or both of a person’s eyes, sudden blurring, or double vision.”
• F – Face: “Ask the person to smile. Unevenness or droopiness on one side of the face can be a sign.”
• A – Arms: “Have the person raise both of their arms. If the person has difficulty holding one arm up or has unusual arm weakness, get emergency help.”
• S – Speech: “Sudden lack of ability to talk, inability to understand what others are saying, or slurred words, can be signs of a stroke.”
• T – Time: “If one of these symptoms occur out of the blue, then call emergency services. When the emergency operators are on the line, let them know what symptoms have presented.”

Also Read: Times Network India Health Summit 2026 Key Takeaways: AI, Fertility, AYUSH, Cancer Care & More

Why “Time” Matters The Most

Time is not a symptom. It is a reminder to hurry. Duke Health, citing the American Stroke Association, says to call for help even if the symptoms go away. Weill Cornell Medicine, citing the same group, says never to drive yourself to hospital.

The Frederick Health handout adds that you should note when the symptoms began. UChicago Medicine estimates that about 1.9 million brain cells die every minute in a stroke caused by a large blocked artery.

India’s biggest problem is delay in seeking medical treatment.

An ICMR study of 34,792 stroke cases at 30 hospitals between 2020 and 2022 found that only 5.3% of patients reached hospital within the first hour, according to South First. Nearly four in ten waited more than 24 hours. Down To Earth, reporting on a Lancet Neurology study, says India had over 1.25 million new stroke cases in 2021, up 51% since 1990.

If you see even one sign, don’t wait for the others. Call 112, India’s single emergency number, which also covers the 108 ambulance service, according to Factly. Say what you see and when it began.

Share BE FAST with your family tonight. You may be the one who spots it.

Many people track their steps, sleep and heart rate with a precision that once seemed unusual. The feet behind those steps rarely get the same attention, hidden as they are inside shoes all day.

A crack, an ache or a patch of numbness is easily put down to the weather, age or an ill-fitting pair of sandals. Yet some complaints reach a clinic only after they begin to interfere with everyday life.

Symptoms That Are Easy to Explain

Cracked heels are a good example, because they are so common that most people treat them as a cosmetic matter and reach for a moisturiser. That is usually reasonable, although a deep fissure that bleeds or keeps reopening gives bacteria a way into the skin and is worth having examined.

Heel pain often has a musculoskeletal cause and tends to respond to rest and supportive footwear, but pain that lingers for weeks points to something more specific. Numbness gives the least warning of all, since it can arise from nerve compression, poor circulation, nutritional deficiencies or diabetes, and because it does not hurt, an injury can go unnoticed for days.

Also read: Toddler’s Swollen Knee Turned Out To Be Juvenile Arthritis Diagnosis: Signs Parents Should Not Ignore

Why Weekly Measurement Matters

When a wound does develop, understanding whether it is actually healing becomes just as important as recognising the early warning signs. Researchers who monitor wounds over time know that appearance alone does not always tell the full story.

What a Recent Case Report Showed

A 2025 case report in the Journal of the Foot & Ankle followed two adults with long-standing diabetes and neuropathic plantar ulcers for twelve weeks, with wound area quantified by digital planimetry. One wound, treated with a graft of decellularised human dermis, shrank by 80 percent by week four and had fully epithelialised by week eight.

The other, managed with gauze-based moist wound care, reduced by 7.8 percent at week two, grew by 21.6 percent between weeks three and five, and reached a 68.6 percent reduction by week twelve without closing. No adverse events were recorded in either patient during the twelve weeks.

Reading the Evidence Carefully

The report is descriptive, and two patients cannot settle questions about any treatment. The lesson that carries beyond the clinic is more modest, since progress is easier to judge when it is tracked against a timeline.

Asking How Long, Not How Bad

For readers, the message is to pay attention not just to how serious a symptom looks, but also to how long it has lasted and whether it is changing. Cracks that repeatedly reopen, persistent heel pain and spreading numbness deserve medical attention.

For people with diabetes, any new foot wound should be assessed promptly rather than waiting to see whether it improves on its own.