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.

Oats for breakfast are a go-to choice for many health enthusiasts. Celebrities often turn to this source of complex carbohydrates to kick-start their day—but research suggests some health benefits of this breakfast food that are often overlooked. According to a study by the University of Bonn, eating oats for just two days can help reduce cholesterol levels naturally, and the benefits can last for weeks afterwards. The study, published in the Nature Communications journal, found that even short-term dietary changes can contribute to improvements in people’s risk of metabolic diseases. Experts say that such studies reinforce the importance of following a healthy diet for heart health.

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What makes oats a healthy breakfast choice?

Oats are rich in soluble fibre and beta-glucans, and these nutrients make them good for cholesterol management and heart health. Experts say that while two days of oats can benefit the heart, it is important to follow a long-term dietary regime to maximise the benefits. Researchers noted that oats can improve cholesterol management by altering the gut microbiome. They help produce compounds that boost metabolism, such as ferulic acid. At the same time, oats help reduce insulin resistance, which is a driving factor for diabetes.

How do oats improve heart health?

In the trial, participants who were suffering from metabolic syndrome followed an oat-based diet for two days—about 300 mg per day. This was divided into three meals along with portions of fruits and vegetables. The results were:

1. Weight loss of 2 kilos
2. LDL dropped by 10 per cent
3. Benefits sustained after six weeks
4. Blood pressure also improved

A control group also followed a calorie-restricted diet, and the improvements noted were greater compared to people who consumed oats.

Are two days sufficient to reap the benefits of oats?

The study found that a high-intensity oat diet had stronger effects compared to a longer and moderate intake. It was found that people who ate 80 grams of oats for six weeks showed minor improvements compared to those who followed the strict two-day plan. This suggests that a structured dietary intervention, even if short, can deliver faster metabolic results.

Nutrition in oats

Oats contain some protein but are primarily rich in soluble fibre, beta-glucans, and complex carbohydrates. One cup of oats can provide about 4–6 grams of fibre. To enhance the nutritional value and benefits of oats, you can also add fruits and vegetables.

Conclusively, it can be said that diet can have a strong impact on heart health, especially if one makes informed choices. However, experts warn against relying on short-term solutions for long-term care. Particularly in the case of patients with high cholesterol, consulting an expert is important before making dietary changes. While eating oats for just two days can be beneficial, it is advisable to follow a long-term plan to improve overall metabolic health.

Drinking hot tea or coffee can be a real source of comfort as a wake-up time ritual or a relaxing activity after work. But how hot is too hot? And could everyday habits like burning the bridge with your tea or brushing past frequent heartburn be putting you at risk for serious health problems? New research indicates that temperature and long-term irritation of the food pipe (esophagus) may be more important than many realize in the risk of cancer.

The Hidden Risk Of Very Hot Drinks

It’s not the tea or coffee, it’s the temperature. The International Agency for Research on Cancer has classified “drinking very hot beverages” (i.e., those that are consumed at greater than 65°C (149°F) as “probably carcinogenic to humans.” Repeated incidents of hot liquids in the esophagus lining can lead to damage over time.

In support of this, a meta-analysis of 39 studies totaling more than 42,000 participants, published in BMC Cancer (2015), found that hot beverages and foods were associated with a significantly higher risk of esophageal cancer, ranging from an overall increase of about 82%.

A recent prospective cohort study published in the British Journal of Cancer (2025) based on UK Biobank data has again pointed out the association of drinking very hot beverages frequently with increased risk of esophageal cancer.

What Happens Inside The Body?

The mechanism is simple but scary. Repeatedly consuming very hot liquids can damage the fragile lining of the esophagus, through repeated thermal injury. Over time this repetitive damage may lead to:

• Chronic inflammation
• Increased cell turnover
• Greater likelihood of abnormal cell growth

This process can create an environment where cancer is more likely to develop.

Where Heartburn Fits In

But hot drinks are just part of the picture. Another risk factor is frequent heartburn/acid reflux - which is the back flow of stomach acid into the esophagus. Chronic exposure to acid is a risk factor for developing the condition known as Barrett’s esophagus, which has a higher risk of progressing to esophageal cancer.

Research published in Gastroenterology (2014) shows that long-term gastroesophageal reflux disease (GERD) is strongly associated with an increased risk of esophageal adenocarcinoma. When combined, heat damage from hot drinks and chemical irritation from acid reflux may further increase the risk.

An important point: Tea and Coffee are NOT the issue. In fact, a number of studies have shown that these drinks may have some healthy benefits due to their antioxidant content. The issue is drinking these drinks at very high temperatures.

How To Reduce Your Risk

The good news is that small changes can make a meaningful difference.

Experts recommend:

• Letting hot drinks cool slightly before sipping
• Avoiding frequent consumption of very hot liquids
• Managing heartburn symptoms early
• Seeking medical advice for persistent acid reflux

Even pausing a few minutes before sipping your tea or coffee can help cut out some of the risks. You don’t have to sacrifice your daily cup of tea or coffee for your health, but how you drink it does matter.

Scientific research indicates that chronic heartburn and very hot drinks can, over time, damage the esophagus and possibly increase cancer risk. Simple changes like enjoying your drinks at a lower temperature and tackling reflux can help to safeguard your long-term health without giving up those drinks you love.

During pregnancy, food safety becomes extremely important. Certain foods can carry harmful bacteria like Listeria, which may affect both the mother and the unborn baby. Hence, it is imperative to know which foods to avoid during pregnancy. Follow the guidelines given by the expert to stay healthy during this crucial phase. Read on to know more about this.

Dr Tanveer Aujla, Consultant Obstetrician & Gynaecologist, Motherhood Hospitals, Noida, spoke about the importance of eating right during pregnancy.

Pregnancy is a time when women need to be extra careful about their diet and hygiene. The body undergoes many changes, and the immune system becomes slightly weaker, increasing the chances of infections in pregnant women. One such infection is caused by a bacterium called Listeria, which can be present in contaminated food. Here, the expert helps to explain Listeria and suggests food safety tips.

What is listeria?

Listeria is a type of bacteria that can cause an infection known as listeriosis. This infection usually spreads through contaminated food. In healthy individuals, it may cause mild symptoms such as fever, body aches, or stomach upset. However, during pregnancy, it can be more serious because the bacteria can pass to the unborn baby via the placenta. In some cases, it may lead to complications such as miscarriage, premature birth, or infection in the newborn. Hence, it is the need of the hour for pregnant women to pay attention to their diet.

Food safety tips for pregnant women

Pregnant women should follow these food safety tips:

1. Prioritise food hygiene to prevent infections
2. Make sure to wash fruits and vegetables properly before eating
3. Food should be cooked thoroughly, especially eggs and seafood
4. It is also important to store food properly
5. Avoid eating food that has been kept outside for too long or stale food
6. Say no to raw milk or products made from unpasteurised milk, as they may contain harmful bacteria
7. Street food that is kept uncovered for long hours can easily get contaminated with bacteria
8. Leftover food that is not stored properly in the refrigerator can develop bacteria if reheated multiple times, so discard leftover food
9. Certain soft cheeses or ready-to-eat refrigerated foods may carry Listeria if not stored properly.

Therefore, make sure to store food as advised by the expert to avoid any health issues during pregnancy. Taking these vital precautions can go a long way in ensuring a healthy pregnancy and protecting the baby’s growth and development. So, pregnant women should take charge of their health and adhere to safe food practices. Stay vigilant!