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.

Prediabetes affects more than 600 million people worldwide and is linked not only to an increased risk of type 2 diabetes but also to impaired brain function.

Adding a small quantity of almonds to the daily diet on their own or added to cereal, yogurt, curries, salads, and other dishes may help boost brain health and prevent a decline in cognitive function in adults with prediabetes, experts said.

Almonds contain

• protein
• fiber
• saturated fat and unsaturated fat
• 24 essential nutrients, including magnesium, potassium, and vitamin E.

The findings showed that eating just a few almonds each day may benefit cognitive performance, metabolic health, and markers of inflammation and oxidative stress in middle-aged Asian Indian adults with prediabetes.

“Adults with prediabetes are vulnerable to a decline in cognitive function. Our study indicates that just one simple dietary change – adding a small quantity of almonds to the daily diet – may help support brain health and improve cognitive performance in some populations,” said Dr. Anoop Misra, co-investigator and Chairman, Fortis-CDOC Center of Excellence for Diabetes, Metabolic Diseases, and Endocrinology in New Delhi, part of the study.

He noted that daily almond consumption could help lower the risk of prediabetes progressing to type 2 diabetes, a condition associated with an increased risk of dementia.

How Was The Study Conducted?

Also read: Unsafe Food Causes 1.5 Million Deaths Annually; Children Under 5 Face 3x Higher Risk: WHO

In a 24-week study, 60 Asian Indian adults aged 40–60 with prediabetes were assigned to either a control group or an almond group.

Those in the almond group consumed 32–42 grams of almonds daily as part of a calorie-matched diet.

Researchers assessed cognitive performance, blood sugar levels, cholesterol, weight, BMI, and waist circumference before and after the study.

What Did Researchers Find?

Participants in the almond group experienced improvements in executive function and processing speed, both key measures of cognitive performance.

They also demonstrated better blood sugar control, including lower fasting blood glucose, lower blood glucose levels two hours after eating, and improvements in HbA1c, a marker of long-term blood sugar control.

Additional metabolic benefits included significant reductions in body weight, body fat, BMI, waist circumference, total cholesterol, and LDL cholesterol.

Read More: PM Modi’s Push To Reduce Oil Intake Key To Fighting India’s Obesity And Diabetes Crisis, Say Experts

Participants consuming almonds also showed improvements in markers related to inflammation and oxidative stress.

“The findings showing improvements in cognitive function, blood sugar control, body weight, and cholesterol levels reinforce the role of almonds as a superfood. Their versatility and convenience make them an easy addition to everyday eating habits, while also providing important nutrients that support overall well-being,” said Ritika Samaddar, Regional Head, Department of Clinical Nutrition and Dietetics, Max Healthcare.

“Inflammation and oxidative stress are associated with cognitive decline. Our study found those in the almond group had lower levels of both, along with higher levels of a protective antioxidant (Vitamin E), compared with the control group,” said Dr. Seema Gulati, lead researcher of the study and Head of the Nutrition Research Group at the National Diabetes, Obesity and Cholesterol Foundation in New Delhi.

Chronic inflammation can cause major diseases like type 2 diabetes, cardiovascular disease, and cancer; thus, while thinking about staying healthy for a long time, it is a very important part of it. The disease is also a silent one that silently harms tissues over time and serves as a major reason for lifestyle conditions like Type 2 diabetes, obesity, and heart disease. Thus, reversing it becomes very important,

Recent study by researchers at Ohio State University, published in the journal Molecular Nutrition and Food Research, is a ray of hope for reversing this issue through dietary changes. The study finds that the drinking of specially formulated tomato-soy juice may reduce inflammation.

How Does Tomato-Soy Juice Fight Inflammation?

This beverage has a couple of potent reasons behind its success in the study against inflammation, namely lycopene and soy isoflavones. Notably, lycopene has antioxidant and carotenoid properties that enable it to neutralize free radicals, which cause cellular damage and fuel chronic inflammation. On the other hand, soy isoflavones possess plant-based nutrients called flavonoids, which have unique anti-inflammatory properties that can copy or modulate hormone signaling to calm overactive immune responses.

How Soy Helps Reduce High BP?

Those taking soy foods around 60–80 grams daily can expect a 28–29 per cent reduction in blood pressure. One hundred grams of soy is roughly equivalent to one cup of cooked beans or lentils, or a palm-sized serving of tofu. Higher soy consumption led to a 19 per cent lower risk of hypertension. Soy foods additionally contain compounds called isoflavones, which may further contribute to blood pressure regulation.

The study shows that tomato-soy juice reduced three major pro-inflammatory proteins in the blood, including interleukin-12 (IL-12p70), interleukin-5 (IL-5), and granulocyte-macrophage colony-stimulating factor (GM-CSF). The drink also lowers tumor necrosis factor-alpha (TNF-α), which is linked with chronic inflammatory diseases.

Read Also: Is Soy A Healthy Addition To Your Diet?

Are Soya Chunks Good For Gut Health?

Soy foods may support heart health. It is believed to reduce inflammation in blood vessels and improve their flexibility, lowering the risk of heart disease and stroke. Some studies even link soy consumption to a 15 percent lower risk of death from heart disease.

The ‘high-protein’ tag attached to soy products such as soya nuggets, soya chaap, and even soy milk is misleading. As industrially processed foods often contain 80 to 90 percent refined flour, consumers get empty calories that spike blood sugar, disrupt hormonal balance, and fuel inflammation.

Prime Minister Narendra Modi once again addressed the nation through his monthly radio broadcast, Maan Ki Baat. It was the 134th installment of the broadcast, and the Prime Minister urged the people of India to take extra precautions in summer's scorching heat.

The Prime Minister said, "It is very hot in most parts of the country right now. Strong sun, hot winds, it is very important to take care of yourself in such weather. Keep drinking water. If at all you have to go out in the sun, do so with caution." He added, "Don't forget the guidelines issued by various government departments in this regard."

Then the Prime Minister also addressed traditional food and drinking practices in different parts of the country to stay fit even during the hot summer. He urged the citizens to drink regional traditional drinks to stay hydrated and named popular options like Aam Panna, Sattu sherbet, Kokum sherbet, Sol Kadhi, Panakam, Neer Mor, Sambaram, Bael Pana, and Buttermilk. "Ek Bharat Shreshtha Bharat," he added.

The Prime Minister also mentions mangoes, which are a household summer treat in India. He said, "Every region… its own mango, its own flavor, its own aroma." Then he described these different mangoes and their specialties as well.

Prime Minister Narendra Modi also mentions the journey of the Indian mangoes from domestic production to the global market.

Easy Tips To Stay Fit During a Heatwave

Drink water consistently at regular intervals instead of gulping large quantities at once. Electrolyte-rich fluids like coconut water, lemon water with a pinch of salt, or buttermilk are healthy, affordable options to soothe parched throats.

Add items like curd, rice, cucumber, and bottle gourd to your diet and avoid red meat and fried foods during peak summer days.

Extreme temperatures put additional stress on the cardiovascular system, especially in people with hypertension, diabetes, or heart conditions. Make sure to take all prescribed medications exactly as advised—don’t skip doses even if you experience heat-induced nausea. If you feel dizzy or experience palpitations or severe fatigue, consult your doctor as soon as possible.

Air conditioning is helpful, but overexposure can lead to dry skin, headaches, and respiratory discomfort. Once every two or three hours, step away from your desk for a few minutes. Walk or stand, and sip some water.