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

Menopause is often characterised symptoms like by hot flashes and night sweats. But for some women, the transition can also bring changes in mood, memory and concentration that may be harder to identify. These symptoms can affect everyday life and may be misconstrued as stress, ageing or the emotional effects of children leaving home.

On World Menopause Day 2026, Dr. Abha Majumdar, gynaecologist and one of the lead IVF specialists in the country, told HealthandMe that women and their families need to identify the least obvious symptoms of perimenopause, the transition leading up to menopause.

Menopause Symptoms Dismissed For Empty Nest Syndrome

Empty nest syndrome refers to the feelings of grief, loneliness or loss of purpose that some parents experience when their children leave home to study, work or start their own families. The transition can bring changes to family routines and relationships, especially for parents who have spent years raising their children.

Dr Abha points out that mood changes in women during their 40s should not automatically be attributed to empty nest syndrome.

Perimenopause, the transition leading up to menopause, can also involve mood swings, forgetfulness and difficulty managing everyday tasks.

As she puts it, “Suddenly, around 45 or around that time, she starts feeling depressed. Everyone says, "Oh, children have grown up, you know, it is like an empty nest. But it is not just an empty nest.”

Recognising the symptom is key so that women experiencing new or persistent symptoms are not dismissed as simply struggling with their children leaving home, and can seek medical advice when needed.

Also read: World Menopause Day 2026: Perimenopause Can Begin In Your Late 30s. What Changes Should You Watch For?

Symptoms Not Related To Menstrual Cycle

Perimenopause can bring changes that don't relate to menstrual or hormonal cycle. Women may find themselves to be forgetful about routine things, struggle to concentrate or feel overwhelmed by tasks they previously managed with ease.

Dr Abha explains how these changes may appear in everyday life. She said, “She starts forgetting. She starts finding it difficult to cope with the daily chores which she did very easily before that.”

She says women may also face cognitive symptoms like brain fog and mood swings during this phase. She said, “Forgetfulness, cognition difficulties, brain fogging, mood swings.”

These symptoms can be confusing when women do not know that they come with menopausal transition. Changes in mood, for instance, may be misconstrued as reaction to family responsibilities, work stress or other pressures, while difficulties with memory and concentration may completely go unnoticed.

Also read: Menopause Abruptly Shifts Bones, Liver And Blood Fats, Study Finds

Perimenopause Duration

Perimenopause does not begin at the same age for everyone. Also, the transition may continue for several years before menopause sets in.

Dr Abha said that perimenopause may last for five or even 10 years before menopause sets in. She also said that fluctuating oestrogen levels are part of this phase.

“She's probably going through a perimenopause, which is it estrogen deprived and then comes up, goes down and comes up, and goes down and comes up. It may take couple of years for menopause to set in," she said.

Since the transition can be prolonged, understanding its symptoms is important for women as well as their families. Dr Abha explains that husbands and adult children should be attentive to changes in a woman's behaviour, mood or ability to manage familiar routines, rather than dismissing them.

She also stresses that women's health after menopause deserves attention, particularly as life expectancy increases.

She said, “Please support her at that time because she's got 25 years more to live right away. Maybe more.”

Medical Attention

Mood changes, fatigue, sweating and memory difficulties should not automatically be attributed to menopause. Other health issues can produce similar symptoms, which makes medical attention important.

Dr Abha advises women to seek help whenever they notice a change that makes everyday activities more difficult.

She said, “Any point. If she feels something is happening to her, she's not being able to cope with her daily chores. She used to cook so effortlessly, now it takes a lot of effort. She starts getting tired, she sweats. That is the time. May it be 40, may it be 45, may it be 38 also.”

A doctor can assess menstrual cycle and determine whether symptoms are related to perimenopause or another condition. Dr Abha says investigations may also help identify other possible explanations, including vitamin deficiencies or thyroid problems.

“So, they can be sorted out. So don't avoid going to a doctor if you feel something is changing in your body. And what you were coping with earlier, you're not being able to cope with that.”

Breast cancer is generally considered to be a problem of old age. In India, however, breast cancer is usually diagnosed in women who are in their 40s and 50s, a decade before the average age group in several other parts of the world. While this difference has clinical significance, the reasons behind it are varied and cannot be pinned down to any one biological or genetic cause.

Reproductive and lifestyle differences

Age, hormones, heredity, reproductive history and environment play roles in determining the risk of breast cancer. Historically, differences in age at first birth, number of pregnancies and breastfeeding period could have been responsible for the variance seen in risk levels across populations. Presently, the changing pattern of reproduction, late age of first pregnancy, lower number of births and less breastfeeding among certain groups of Indians could affect the risk of breast cancer.

Other changes include dietary, physical activity and body weight trends due to urbanization. Being overweight, especially postmenopausal, and excessive alcohol intake are known risk factors for breast cancer. But this alone does not account for the difference in age profile of breast cancer in India.

Genetic susceptibility is another factor which needs to be taken into account. Mutations in the inherited genes, including BRCA1 and BRCA2, may lead to the increased risk of development of breast cancer in young women. Nonetheless, there is no sufficient information to suggest that a particular genetic background specific for the Indian population contributes to this difference. More research in the field of genomics is needed.

Another thing to take into account is that the young age of the patients does not mean that the breast cancer occurs more frequently in India compared to other countries. Higher age-standardized incidence rates have been observed in Western countries due to reproductive behaviors, lifestyles, and screenings. Younger age of Indian patients may also be explained by demographic factors, as well as the difference in screenings and diagnoses.

Also read: Breast Cancer: Know the Risks, Recognise the Signs & Get Checked

Do young Indian women tend to develop aggressive cancers?

Indian cancer centers report significant shares of hormone receptor-negative, HER2-positive, and triple-negative breast cancers, as well as a more advanced stage of the disease at the time of diagnosis. Aggressive biological types among these subgroups might require aggressive therapy.

Nonetheless, it is critical not to generalize this information and apply it to all Indian women and breast cancers developed at a younger age. It may be questioned whether hospital-based studies reflect the whole population, as there is variation in tumour subtypes within the population.

Late diagnosis is one of the main problems. Poor awareness, fear and stigma, family obligations, financial constraints and delayed health-care visitation result in growth and spread of tumours before starting treatment. Young women may ignore a breast lump because they think that being young prevents them from developing breast cancer. It may be dangerous.

Should breast cancer screening start early in India?

The issue requires clarification between awareness, diagnosis and screening.

Breast awareness should start in early adulthood. Women should be aware of their normal breast condition and have an immediate medical check up if they find any changes such as a breast lump, nipple retraction, bleeding nipple discharge, skin dimpling and others, regardless of age. Suspicious change requires diagnosis rather than waiting until next screening examination.

In asymptomatic women, it is necessary to determine the ideal age and screening method according to Indian conditions. Mammography is well-known screening tool, ultrasound could assist in evaluating dense breast tissue in younger women. Both should not be over-used without proper medical evaluation. Women who have a robust family history or those carrying high-risk genes should have an earlier and more rigorous surveillance program.

What India requires is a systematic and risk-appropriate early detection program that includes public awareness, medical evaluation, screening, and treatment.

The bottom line is that breast cancer does not occur only among older patients. Early detection of symptoms and changes can make a difference in saving lives.

By Dr Sewanti Limaye, Director of Medical & Precision Oncology, Sir H. N. Reliance Foundation Hospital, Mumbai

Menopause typically occurs between the ages of 45 and 55. However, the hormonal changes leading up to it can begin earlier, with some women reporting symptoms in their 30s.

A 2025 study published in NPJ Women's Health examined 4,400 American women aged 30 and older. It found that roughly 55% of women aged 30-35 reported moderate or severe symptoms on the Menopause Rating Scale. The proportion rose to just over 64% among women aged 36-40. Despite these symptoms, most women did not seek treatment until they were 56 or older.

Speaking to HealthandMe, Dr. Kajal Parikh is an Obstetrician and a Gynecologist based in Mumbai, explained how hormonal changes can begin in the mid-to-late 30s, the signs women should watch for, and why monitoring symptoms and maintaining healthy habits matter during this transition.

Perimenopause Can Begin In Your Mid-To-Late 30s

From the first menstrual period to menopause, the body undergoes significant hormonal changes. Estrogen and progesterone are among the hormones involved in this process.

“These hormones don't exit overnight. The exit starts much earlier. Starting mid-30s to late 30s, the hormone levels start depleting. Now, when that level starts depleting, you're going to see signals.”

According to Dr Parikh, changes in menstrual cycles can be among the first signs. Periods may become heavier or lighter, while cycles may become shorter or longer.

Being mindful of these changes can help women identify patterns and discuss persistent or concerning symptoms with a healthcare professional. However, these symptoms alone do not confirm that a woman is in perimenopause.

Also read: Menopause Abruptly Shifts Bones, Liver And Blood Fats, Study Finds

Brain Fog, Sleep Problems And Other Signs To Watch For

Perimenopause symptoms can extend beyond menstrual changes. Women may notice dry skin, pigmentation, hair thinning, increased hair fall, low energy, brain fog and disturbed sleep.

Some women who previously slept well may begin waking up at 3 or 4 a.m. and find it difficult to return to sleep, Dr Parikh told HealthandMe.

“That's your body asking for some help, or rather the body signaling that we are going through some crisis, see how we can fix it.”

Other possible symptoms include breast tenderness, worsening premenstrual symptoms, headaches, migraines, and bone and joint pain. Vaginal dryness, changes in urinary habits and reduced libido may also occur.

Symptoms vary considerably between individuals, and many of these changes can have causes other than perimenopause, the expert said,

When Should Women Seek Medical Advice?

Read More: ‘I Was Vocal About Cancer But Silent About Menopause Out Of Shame’, Says Actress Lisa Ray

Dr Parikh recommended annual gynecological visits to monitor changes over time. She also advised women to track their symptoms and seek medical advice if they worsen or do not improve with treatment.

Although menstrual changes may become noticeable in the late 30s and early 40s, the timing of the menopausal transition varies. Some women experience menopause earlier than expected, while others continue menstruating into their 50s.

For women without symptoms, Dr Parikh identified 40 as an appropriate age to begin regular monitoring and annual screening.

“40 is that golden age when you start monitoring, when you start getting your annual screenings done.”

The need for specific tests depends on a woman's age, symptoms and medical history. Women experiencing menstrual changes or possible menopausal symptoms at a younger age should consult a healthcare professional rather than waiting until 40.

What Tests And Lifestyle Changes Can Help?

Dr Parikh said doctors may assess iron levels, thyroid function, blood sugar and lipid levels while reviewing a woman's diet, nutrition and exercise habits. These assessments can help identify other conditions that may contribute to symptoms.

She also emphasised the importance of sleep, nutrition and exercise during the menopausal transition.

“The only thing that will save you from this transition are your three strong pillars, which is your sleep, your nutrition, and your exercise regimen.”

Treatment depends on the symptoms and individual health needs. After assessing symptoms and ruling out other possible causes, doctors can discuss appropriate options, including hormone therapy when indicated.

READ: Can Menopause Be Delayed? What Science Says About Slowing Ovarian Aging

Can Genetics Influence Menopause Timing?

Dr Parikh said genetics can play a role in determining when menopause occurs. A family history of early menopause, including in a woman's mother or grandmother, may be relevant when discussing her own reproductive health.

She also raised concerns about potential environmental exposures, including endocrine-disrupting chemicals found in some products and packaging. However, their individual contribution to the timing of menopause is difficult to establish, and these exposures should not be presented as proven causes of early menopause.

Maintaining a balanced diet, exercising regularly and prioritising sleep can support overall health during the menopausal transition.