We all know that drinking water is good for us. If you are feeling tired, have some water. Have a dry skin? Have some water. Have a dry throat? Have some water. It is almost like water is the fix to all our issues. May be it is, but not always. So, are we sometimes drinking more water than necessary? What happens then?

Many say that there is an 8x8 rule one must follow when it comes to drinking water.

What is the 8x8 drinking water rule?

Many believe that in the 8x8 rule, eight 240ml glasses of water per day adds up to almost 2 liters. However, it is not in the guidelines in both the UK and the EU health advisory. None of them recommends this specific amount.

So, where did it origin from?

The origins of this rule seem to come from misinterpreted advice given decades ago. In 1945, a US advisory board suggested adults should consume one milliliter of fluid per calorie of food, totaling about two liters for women and 2.5 liters for men. Importantly, this included all drinks and even water-rich foods like fruits and vegetables.

A later book in 1974 recommended six to eight glasses of water daily but also noted that coffee, tea, and even beer could count towards hydration. Yet, the idea of drinking two liters of plain water daily took hold and has persisted ever since.

How Much Water Do We Really Need?

As per experts, drinking 8 glasses of water a day may be unnecessary and the research estimates that the actual requirement is around 1.5 to 1.8 liters per day. This not only includes water, but all kinds of fluids from all sources that we may consume in a day.

Also, studies show that instead of following a rigid routine, what is best is to focus on factors like temperature, physical activity and health conditions for your water intake. Those in hot and humid climate, high altitudes or pregnant or breastfeeding, and athletes may require more water. Whereas those in cooler areas, with a more sedentary lifestyle won't. However, for the average person, thirst is a more reliable guide than any fixed rule.

ALSO READ: What Happens When You Drink Too Much Water?

Science of Hydration and Dangers Of Over hydration:

Water is necessary to transport nutrients, control temperature, and keep organs functioning. We lose water through sweat, urine, and respiration, so staying hydrated is critical. However, dehydration develops only when the body loses 1-2% of its total water content.

A widespread myth is that feeling thirsty indicates that you are already severely dehydrated. Experts argue that thirst is an excellent evolutionary mechanism that ensures us drink when we need to. The body also produces hormones that aid in water conservation when necessary.

Drinking More Water Than Needed:

While drinking too much water is generally harmless, it can cause hyponatremia, a condition in which salt levels in the blood become dangerously low. This can result in brain enlargement, disorientation, convulsions, and, in extreme cases, death.

There have been reports of athletes overhydrating during endurance races, resulting in significant difficulties. Experts caution that simply following hydration myths might be dangerous, stating that thirst remains the greatest signal of when to drink.

A leading scientist is challenging the common belief that snacking between meals is automatically bad for your health. Dr Sarah Berry, chief scientist at Zoe, studied the eating patterns of more than 1,000 individuals to better understand how snacking might influence health—positively or negatively

One Common Snacking Habit Could Be Raising Your Cholesterol

Dr Berry pointed out that many people underestimate the importance of when they eat snacks and how timing can affect overall health. The study found that those who ate after 9pm generally had poorer health outcomes, according to Surrey Live. Dr Berry added: “The time you snack is crucial—late-night eating, particularly after 9pm, was consistently associated with these negative health markers.”

Dr Berry explained: “What really stood out was that the time of day you snack makes a difference. Our research showed that snacking after 9pm was linked to higher blood pressure, reduced insulin sensitivity, and elevated cholesterol levels.”

Snack Choices Matter More Than Snacking Itself

The research also looked at the types of snacks participants chose. Dr Berry clarified: “Snacking in itself, eating between main meals—is not the issue. The concern is the kind of snacks you pick. If you’re hungry between meals and choose nutritious options, it won’t harm your health.”

Her findings suggest that selecting healthy snacks and avoiding late-night eating after 9pm can prevent snacking from negatively affecting your health. This means people can still enjoy small treats during the day without feeling guilty.

Why High Cholesterol Is Concerning

High cholesterol is one of the more serious consequences of snacking, often called a ‘silent killer’. It usually does not produce noticeable symptoms on its own but can trigger life-threatening conditions such as heart attacks and strokes.

This condition occurs when there is too much cholesterol—a fatty substance—in the bloodstream. Over time, this buildup can block blood vessels and impair circulation.

High cholesterol can be caused by eating fatty foods, living a sedentary lifestyle, being overweight, or habits like smoking and drinking alcohol. It can also be inherited. While it can be managed with lifestyle changes or medications, awareness and early prevention are crucial.

Symptoms Of High Cholesterol

High cholesterol often develops quietly, with no clear warning signs, which is why it is commonly described as a “silent” condition. On its own, it usually does not cause symptoms. However, over time, it can raise the risk of serious problems such as heart disease. When complications begin to develop, people may notice chest pain known as angina, shortness of breath, unusual tiredness, or cramps in the legs. In some cases, especially in inherited conditions like familial hypercholesterolemia, visible signs can appear. These include yellowish fatty deposits on the skin or around the eyes, called xanthomas or xanthelasmas. Despite this, regular lipid panel blood tests remain the most reliable way to diagnose high cholesterol, according to the Cleveland Clinic.

Common Signs from Related Conditions (Atherosclerosis)

These symptoms usually point to plaque buildup in the arteries, a condition known as atherosclerosis, which is closely linked to high cholesterol:

• Chest Pain (Angina): A feeling of tightness, pressure, or squeezing in the chest, often triggered by physical effort or stress, caused by reduced blood flow to the heart.
• Shortness of Breath: Trouble breathing, especially during activity, as narrowed arteries limit oxygen supply.
• Fatigue or Weakness: Persistent low energy or weakness due to reduced oxygen reaching the muscles.
• Leg Pain or Cramping (Intermittent Claudication): Pain or cramps in the legs during walking or exercise, which may signal blocked arteries in the legs, also known as peripheral artery disease.
• Dizziness or Fainting: This can happen if blood flow to the brain is affected.
• Heart Palpitations: A sensation of irregular or rapid heartbeats

Many people are now aware that microplastics have entered the food and drink we consume every day. Seafood, in particular, has been widely discussed, as studies have found plastic particles in nearly all samples of fish and shellfish tested.

How Plastic Pollution Turned Into A Food Problem

Plastic production has been rising steadily since the 1960s, with around eight million metric tonnes entering the oceans each year. Over time, sunlight and wave action break this waste down into microplastics, tiny fragments measuring less than five millimetres. These particles persist in the environment and gradually move through the food chain.

It Is Not Just Seafood, Experts Warn

Writing in The Conversation, environmental expert Catherine Rolph explains that while seafood has received most of the attention, it is far from the only source of exposure. Public awareness is growing, she notes, but microplastics are found in many everyday foods, often in higher amounts than people expect.

Chewing Gum

Chewing gum is one of the more surprising sources of microplastics. Most gum is made from a synthetic base containing plastics and rubber, along with added sweeteners and flavours. As the gum is chewed, microplastic particles are released. Research suggests that just one gram of gum can release hundreds of these particles.

Even gums labelled as natural appear to release similar amounts, which points to contamination during production or packaging. Studies also show that most microplastics are released within the first few minutes of chewing.

Salt

Salt may seem like a basic, natural ingredient, but studies show that microplastics are present in the vast majority of salt products tested worldwide. In fact, contamination has been found to be higher in some land-based salts, such as Himalayan salt, than in sea salt.

Experts believe much of this contamination occurs during processing and packaging. Plastic grinders can also add to the problem by releasing additional particles while grinding.

Apples and Carrots

Microplastics have been detected in a wide range of fruits and vegetables. Very small plastic particles can enter plants through their roots, while larger fragments may settle on their surfaces.

Research has found that apples and carrots tend to contain higher levels compared to other produce, while leafy greens such as lettuce show lower contamination. Despite this, experts stress that the health benefits of fruits and vegetables remain far greater than the potential risks.

Tea And Coffee

Hot drinks are another overlooked source of microplastic exposure. Tea leaves, coffee, milk, and disposable takeaway cups can all contribute to contamination. Heat increases the release of microplastics, which is why hot beverages often contain more particles than cold drinks. Using loose-leaf tea and reusable cups made from glass or metal can help reduce exposure.

Seafood

While most seafood does contain microplastics, studies suggest the actual levels are often lower than people assume. Filter-feeding shellfish such as mussels have been found to contain relatively small amounts compared to some processed foods and drinks prepared using plastic materials.

What You Can Do to Cut Your Intake

Experts say completely avoiding microplastics is unlikely, but small changes can help reduce exposure. Storing food in glass containers, avoiding plastic packaging where possible, and using non-plastic grinders and utensils can make a difference.

Switching from bottled water to tap water may also lower intake, as studies suggest single-use plastic bottles release more microplastics than tap water.

As a harsh cold wave swept across North India, doctors noticed a quiet but worrying trend inside emergency rooms—more people were showing up dehydrated, even though temperatures were at their lowest. Health and Me spoke to Dr. Swadesh Kumar, Cluster Head – Emergency and Trauma Care & Casualty, Gurugram, to understand why winter dehydration is often missed and how it can turn dangerous if ignored.

When Cold Weather Creates a False Sense of Safety

Winter is usually associated with hot drinks, cozy layers and fewer reminders to sip water. According to Dr. Kumar, this mindset is exactly where the problem begins. “People assume that because they’re not sweating or feeling thirsty, their body doesn’t need as much water. That’s a misconception,” he explains.

During cold spells, thirst signals are naturally suppressed. At the same time, the body continues to lose fluids through dry air, indoor heating and even breathing. “The loss is gradual and silent, which makes winter dehydration harder to spot,” Dr. Kumar adds.

A Rise in Winter Emergency Cases

Hospitals across northern states reported a seasonal increase in dehydration-related complications during the cold wave. These weren’t always dramatic cases. Patients often came in with dizziness, fatigue, confusion or sudden changes in blood pressure.

“In many emergency visits, dehydration wasn’t suspected initially because there was no heat exposure or fever,” says Dr. Kumar. This delay allowed symptoms to worsen before treatment was started.

How Dehydration Worsens Existing Conditions

Low fluid intake doesn’t just cause weakness, it can aggravate underlying health problems. When the body is dehydrated, blood becomes thicker, increasing the risk of clot formation. This is particularly dangerous for older adults and people with heart disease.

Kidneys are also affected. Reduced hydration puts extra strain on them, sometimes leading to acute kidney injury. “We see patients with palpitations, fainting spells and extreme weakness, only to later realize dehydration is the root cause,” Dr. Kumar notes.

Respiratory Infections Add to the Risk

Winter illnesses further complicate the situation. Fever, rapid breathing and certain medications increase fluid loss. Yet many people intentionally avoid drinking water to reduce bathroom visits in the cold.

“This combination is especially risky for children and the elderly,” Dr. Kumar says. Children depend on caregivers for hydration reminders, while older adults naturally feel less thirsty. Both groups can slip into dehydration quickly during winter infections.

Indoor Heating: The Hidden Culprit

Room heaters and blowers dry out indoor air, leading to unnoticed moisture loss through the skin and breath. People spending long hours indoors often underestimate this effect.

Early signs like dry lips, headaches and muscle cramps are commonly ignored. By the time medical help is sought, dehydration may already have disrupted blood pressure or electrolyte balance.

Subtle Warning Signs Often Missed

Unlike summer dehydration, winter dehydration doesn’t come with intense thirst. Dark urine, reduced urination, constant tiredness and mild confusion are frequent clues but are often blamed on cold weather or poor sleep.

“In severe cases, dehydration can contribute to sudden falls, worsening chronic illnesses and emergency admissions,” Dr. Kumar warns.

Simple Habits Can Prevent Serious Risk

Doctors advise treating hydration as a routine, not a response to thirst. Warm water, soups, stews and herbal drinks are practical winter options. Fruits with high water content also help, even when appetite is low.

“Monitor urine color, limit excess caffeine and be extra careful if you have a chronic condition,” Dr. Kumar advises.

The cold wave is a reminder that dehydration isn’t just a summer problem. Even in winter, the body needs adequate water to function, and ignoring that need can quietly turn into a medical emergency.