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

For people living with primary sclerosing cholangitis or PSC, medical options have always been painfully limited. Until now, there has been no approved drug that can slow the disease itself. Treatment has mostly meant managing symptoms and waiting, often for years, until a liver transplant becomes the only option. That is why new results around a monoclonal antibody called nebokitug are being seen as a turning point.

Researchers from the University of California Davis have reported promising findings from a Phase 2 clinical trial showing that nebokitug appears safe and may actually reduce liver inflammation and scarring. The study was published in the American Journal of Gastroenterology and has brought cautious optimism to both doctors and patients.

What Exactly Is PSC?

PSC is a rare, long-term liver disease that mainly affects the bile ducts. These ducts act like tiny pipelines that carry bile from the liver to the small intestine, where it helps digest fats. In PSC, these ducts become inflamed, damaged, and scarred over time. As they narrow, bile starts backing up in the liver, slowly causing liver injury.

Many people with PSC also have inflammatory bowel disease, especially ulcerative colitis. This strong link has led researchers to believe that ongoing gut inflammation may trigger immune reactions that damage the liver as well. Symptoms can range from extreme tiredness and itching to yellowing of the skin and eyes. Some patients have no symptoms at all in the early stages, which makes the disease harder to catch.

Why Treatment Has Been So Difficult

One of the biggest challenges with PSC is that doctors have not had a way to stop the scarring process itself. Once fibrosis sets in, it slowly progresses and increases the risk of liver failure and bile duct cancer. While medications can help with itching or infections, they do not change the course of the disease. This gap in treatment is what makes the nebokitug study so important.

How Nebokitug Works

Nebokitug is a lab-made antibody designed to block a protein called CCL24. This protein plays a key role in driving inflammation and fibrosis in the liver. In people with PSC, CCL24 levels are higher than normal and are found around the bile ducts where damage is most severe.

By blocking CCL24, nebokitug aims to calm the immune response and slow down the scarring process. Earlier lab and animal studies suggested this approach could work. The new trial is one of the first to test this idea in people with PSC.

What the Trial Found

The Phase 2 study included 76 patients from five countries. Participants received either one of two doses of nebokitug or a placebo through an IV every three weeks for 15 weeks. The main goal was to check safety, since this was still an early-stage trial.

The results were encouraging. Nebokitug was found to be safe and well tolerated. More importantly, patients who already had more advanced liver scarring showed improvements in liver stiffness and markers linked to fibrosis when compared to those on placebo. These changes suggest that the drug may be doing more than just easing symptoms.

Experts involved in the study say these findings could change the future of PSC care. Reducing inflammation and fibrosis could slow disease progression and delay or even prevent the need for a transplant in some patients. While larger trials are still needed, nebokitug represents one of the strongest signals yet that PSC may finally have a disease-modifying treatment on the horizon.

Now, drinking beer too could increase the risk of mouth cancer. On Tuesday, researchers at the Tata Memorial Centre (TMC) reported this adding new evidence. They found a 59 per cent higher risk of mouth cancer in people who drank, on average, just two grams of alcohol from beer daily, compared with those who did not drink. The research suggests that there may not be any safe limit to drink.

What Did The Study Reveal About Beer And Cancer?

Their study in India's large scale analysis that probs link between alcohol and cancer of the buccal mucosa. This is the pink lining of cheeks and lips. In India, this kind of cancer is the second most common malignancy in India after breast cancer. It also leads to 1,40,000 new cases and nearly 80,000 deaths each year.

Who Are More Prone To Buccal Mucosa Cancer?

People who consume more than one glass of alcohol a day and chew tobacco on a day to day basis are five times more at risk of developing this cancer as compared to those who do not drink or chew tobacco.

The findings of the study was published in the journal BMJ Global Health and it suggests that joint use of both, alcohol and tobacco leads to 62 per cent of all buccal mucosa cancer in the country.

As Telegraph reported, Tata Memorial Centre for Cancer Epidemiology unit's head of molecular epidemiology and population genomics unit Sharayu Mhatre said, "We see an unmistakable pattern: the more alcohol people drink, the greater their risk of buccal mucosal cancer."

Buccal mucosal cancer continues to pose a serious public health challenge in India. Among 100 patients diagnosed with locally advanced stages of the disease, 57 die within five years, a mortality rate that experts say highlights the urgent need for prevention, early detection, and stronger regulation of risk factors.

Alcohol Emerges as a Major Risk Factor

While the link between alcohol and cancer is well known, new findings reinforce just how dangerous alcohol consumption can be for oral health. Researchers found that people who consumed alcohol had a 68% higher risk of developing buccal mucosal cancer compared to non-drinkers.

What stood out most was the type of alcohol consumed. Unregulated, locally brewed liquor carried the highest risk, increasing cancer likelihood by 87%, compared to 72% among consumers of regulated, commercially sold drinks. Experts point out that these local brews often contain significantly higher ethanol concentrations and lack quality control.

Not Just Heavy Drinking—Even Small Amounts Matter

The study analyzed drinking patterns among over 3,700 participants, comparing cancer patients with healthy individuals. Alcohol types ranged from beer and spirits like whisky and vodka to traditional local drinks such as bangla and tharra. Ethanol levels varied widely—from 5% in beer to as high as 90% in some locally distilled spirits.

Alarmingly, increased cancer risk was seen even at low levels of alcohol intake. As little as two grams of alcohol a day from beer, or roughly one glass of stronger liquor, was enough to raise concern.

Alcohol and Tobacco: A Dangerous Combination

The risk escalates dramatically when alcohol use is combined with tobacco chewing. Tobacco alone raised cancer risk by 200%, alcohol alone by 76%, but together, the risk shot up to 346%. Researchers explain that alcohol may damage the mouth’s protective lining, making it easier for tobacco-related carcinogens to penetrate and cause harm.

Health experts stress that these findings underline the need for greater public awareness, stricter monitoring of locally brewed alcohol, and stronger prevention strategies. The World Health Organization has already warned that no level of alcohol is safe, noting that even light or moderate drinking contributes to a significant number of alcohol-related cancers globally.

For India, where oral cancers remain widespread, these insights serve as a critical reminder: everyday habits can have life-altering consequences.

Delhi finds itself in a little relief as the AQI of the city has dropped to 221 as per the CAQM. GRAP IV restrictions have also been lifted, however, pollution and smog continues to take over the city. The Meteorological Department has issued a yellow alert for the next few days, which could affect road and air traffic.

While GRAP IV is now removed, measures under GRAP I, II, and III will continue. As per the IMD forecast, this is what could happen for the next 5 days in Delhi

• December 26: Dense fog will prevail in the morning. Visibility is likely to be low.
• December 27: Yellow alert, dense fog in the morning and afternoon.
• December 28: Yellow alert, moderate to dense fog expected in the early morning.
• December 29-30: Fog will reduce slightly, but moderate haze will prevail in the morning.

Union Transport Minister On Delhi's Pollution

Nitin Gadkari, Union Minister of Road Transport and Highways also highlighted the alarming conditions of Delhi's smog and pollution. He said, "I stay for hardly two days in Delhi, and get an infection," as he spoke on how pollution impacts one's health conditions. However, he did speak on the severity of pollution and highlighted how the transport sector could play a huge role to bring relief to Delhi.

He highlighted that fuel combustion and transport emission leads to most of Delhi pollution.

In an interview with the news agency ANI, the minister also said that his ministry and Central Government are working on several projects and initiatives that will free Delhi from air pollution in the next five years.

Gadkari stated that the Ministry of Road Transport and Highways is undertaking projects worth Rs 1 lakh crore in Delhi to ease traffic congestion. He stated that all these efforts will not only help free Delhi of air pollution but also reduce the country's imports, increase job opportunities, and help farmers.

Electric Buses, Cars, and Scooters

The minister highlighted that 40% of the air pollution in the National Capital region is due to the burning of fossil fuels. In this regard, the government introduced electric buses in the city and enabled automakers to introduce electric cars and two-wheelers in the country.

He further stated that alternate fuel vehicles, such as those that run on CNG, LPG, and flex fuels (E20), are also being introduced and that all these efforts combined will reduce the city's pollution levels.

CNG And Bitumin From Rice Straw

Gadkari pointed out that nearly 200 lakh tonnes of rice straw or parali is burnt in Haryana and Punjab, a major cause of air pollution in the Delhi-NCR region. In this regard, the government is setting up 400 plants to convert the rice straw into CNG. At the moment, 60 plants are operational.

The minister also discussed a new project in Panipat in which rice straw is being used to create 1 lakh litres of Ethanol, 1.5 tonnes of bitumen, and 78,000 tonnes of jet fuel.