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.

After NHS doctors warned people against vitamin D tablets and its overdose, Turkish expert Prof Dr Mustafa Atlay, a specialist in endocrinology and metabolic diseases at Ankara Training and Research Hospital, said that vitamin D levels above 100 nanograms per milliliter (ng/ml) pose significant risks. The doctor said, "Excessive and unsupervised intake can lead to toxic effects." He highlighted that while deficiency is common among some people, the best way is sunlight. Most people have a limited sun exposure, particularly indoors workers.

The doctor says that deficiency symptoms include fatigue, muscle weakness, bone pain, and in severe cases osteoporosis. Natural sources of vitamin D include fatty fish, egg yolk, liver, and mushrooms, but diet alone is insufficient. The doctor pointed out that supplements under medical supervision is important, especially for elderly individuals, children, and women.

What Are The Early Signs Of Vitamin D Poisoning?

Atlay noted that early signs of poisoning include:

• High blood calcium
• Causing nausea
• Dehydration
• Kidney injury
• Heart rhythm problems
• Neurological symptoms

What Are The Symptoms NHS Experts Warned About OD-ing on Vitamin D

Vitamin D Overdose: Feeling Frequently Thirsty And Want To Urinate

If you find yourself feeling thirsty or want to urinate more, it could be because you are taking too much of vitamin D. NHS experts suggest to cut the intake to a single 10 microgram tablet and drop any extras if these symptoms appear.

What happens is that excess vitamin D could disrupt fluid and salt balance in the body and thus you may want to visit the loo a little more. Also, keep hydrating yourself. In case the symptoms persist, go to your GP.

Read: NHS Doctors Warn Vitamin D Users About Four Key Overdose Symptoms

Vitamin D Overdose: Burping Constantly, Feel Nausea And Have A Sour Stomach

If you feel like puking, and are burping constantly, for feel like a sour stomach, then try to take your supplement after a meal. If you are taking gummies or spray, it is the best time to switch to a tablet. This happens because food buffers the supplement in the gut and reduces irritation, whereas sprays and gummies contain sweeteners or flavors that could create problems for some people.

Vitamin D Overdose: Bones And Muscles Hurt

If you feel your muscles are cramping more and bones also ache, it is a red flag. The key to this is to prioritize your fluids, mineral -rich foods, and physical activities.

Excess vitamin D could disturb the minerals muscles rely on. Furthermore, dehydration makes cramping worse. You can improve your hydration, drink water with meals and also include yogurt and leafy greens in your food. Include some exercise or gentle stretching in your schedule.

Vitamin D Overdose: Cannot Think Straight

Excess vitamin D could also make your brain fog or cause headaches. So, when you buy any supplement, make sure you read the label. Choose a product listing only cholecalciferol and simple bulking agents. Take it with food at the same time each day to keep intake steady and gentler on the gut. Experts also suggest leaving combined A+D products behind and only pick simple D3 tablet.

After two cases of Nipah virus, a rare, bat-borne pathogen was confirmed in West Bengal, five more cases were reported, with nearly 100 people placed under quarantine.

The two previously confirmed cases were of two nurses, the rest cases are of a doctor, a health staff member, with some patients in critical condition.

Speaking to TOI, Dr Aishwarya R, Consultant, Infectious Diseases at Aster RV Hospital said, “Nipah virus is a highly dangerous zoonotic infection with a high fatality rate, ranging from 40% to over 70% in past outbreaks.” The doctor has also advised people against eating certain food, including fruits fallen from trees, unpasteurized date palm sap and any other fruits without washing. The doctor explained that this infection can spread with infected animal who could bite fruits and spread the virus through their saliva.

Nipah Virus Tested In West Bengal Bats

A survey conducted on bats in West Bengal found no active Nipah virus infection. Though there were antibodies detected in one specimen, which indicated prior exposure. This was confirmed by a senior state forest department official on Tuesday. The survey was conducted amid the identification of two confirmed Nipah virus cases.

Read: After Two Nipah Cases In West Bengal, Tests On Bats Show No Active Infection

To conduct the survey, nine bats near Kuberpur on the Kolkata-Barasat Road in Madhyamgram were tested using RT-PCR. All samples were negative, however, one bat, tested positive for antibodies. However, it only suggested prior infection, meaning there was no current risk of transmission.

The survey was conducted by the state forest department in collaboration with scientists form Pune-based National Institute of Virology. "The findings are reassuring, but caution is warranted. Surveillance and prevent measures will continue until we are fully assured that there is no risk," confirmed a senior official of the West Bengal Health Department.

What Is Nipah Virus?

As per the World Health Organization (WHO), Nipah virus infection is a zoonotic illness that is transmitted to people from animals, and can also be transmitted through contaminated food or directly from person to person.

In infected people, it causes a range of illnesses from asymptomatic (subclinical) infection to acute respiratory illness and fatal encephalitis. The virus can also cause severe disease in animals such as pigs, resulting in significant economic losses for farmers.

Although Nipah virus has caused only a few known outbreaks in Asia, it infects a wide range of animals and causes severe disease and death in people.

During the first recognized outbreak in Malaysia, which also affected Singapore, most human infections resulted from direct contact with sick pigs or their contaminated tissues. Transmission is thought to have occurred via unprotected exposure to secretions from the pigs, or unprotected contact with the tissue of a sick animal.

In subsequent outbreaks in Bangladesh and India, consumption of fruits or fruit products (such as raw date palm juice) contaminated with urine or saliva from infected fruit bats was the most likely source of infection.

Human-to-human transmission of Nipah virus has also been reported among family and care givers of infected patients.

Read: Doctor Debunks Five Myths Around Nipah Virus

Nipah Virus Symptoms

• Fever
• Headache
• Breathing difficulties
• Cough and sore throat
• Diarrhea
• Vomiting
• Muscle pain and severe weakness

Black or forbidden rice, especially from Manipur, Assam and Meghalaya, has long been PM Narendra Modi's favorite superfood and experts say it has even more antioxidants than blueberries!

Registered dietitian Beth Czerwony, RD, noted: "Black rice has been slow to cross over to places outside of Asia, but we are finally starting to understand its benefits as a healthy, appetizing and beautiful food."

Belonging to the species Oryza sativa, the rice refers to a type of heirloom rice that is used in traditional Chinese medicine and was once reserved only for the wealthy and powerful, which is why it's known as 'forbidden'.

Black rice may be long-grain, medium or short-grain. Grown on a small scale, this rice is not as common as white, brown and red rice and is primarily grown in India's Northeastern states, as well as West Bengal, Odisha and Jharkhand.

Here are some of its health benefits:

1. Improves Eye Health

Research shows that black rice contains high amounts of lutein and zeaxanthin, two types of carotenoids that work as antioxidants to help protect your eyes from potentially damaging free radicals.

In particular, lutein and zeaxanthin have been shown to help protect the retina by filtering out harmful blue light waves, which are transmitted from all electronic devices as well as LED lamps. While it helps with alertness and mood during the day, excessive blue light exposure at night can suppress melatonin and disrupt sleep-wake cycles.

Previous research also suggests that black rice's high antioxidants may play an important role in protecting against age-related macular degeneration (AMD), which is the leading cause of blindness worldwide. It may also decrease the risk of cataracts and diabetic retinopathy (a complication of diabetes that affects the eyes).

2. Helps With Blood Sugar Management

Black rice is especially beneficial for those suffering from Type 2 diabetes as antioxidants and phytochemicals can improve your body’s sensitivity to insulin. This helps the body to better use glucose, slows the rate at which the body absorbs sugar and lowers overall sugar levels in your blood.

3. Rich Source of Essential Nutrients

Black rice stands out among rice varieties due to its high protein content. In comparison to brown rice, which contains 7 grams of protein per 100 grams, black rice offers 9 grams. It is also a valuable source of iron, a mineral crucial for oxygen transport in the body.

A quarter cup (45 grams) of uncooked black rice provides:

Calories: 160

Fat: 1.5 grams

Protein: 4 grams

Carbohydrates: 34 grams

Fiber: 1 gram

Iron: 6% of the Daily Value (DV)

4. Reduces Oxidative Stress

High levels of oxidative stress have previously has been associated with an increased risk of several chronic conditions, including heart disease, Alzheimer’s, and certain forms of cancer.

5. Boots Heart Health

While research on black rice and heart health is ongoing, its high flavonoid has been linked to a lower risk of cardiovascular disease.

Certain studies suggest that anthocyanins can improve cholesterol levels by increasing HDL (good) cholesterol and reducing LDL (bad) cholesterol. While further research is needed, early findings suggest black rice may help reduce plaque buildup in arteries, which can help prevent atherosclerosis and reduce the risk of heart attack.