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.

Collagen is essential for maintaining firm skin, prevent premature aging and regulates cell proliferation. While it is usually found in animal sources, many fruits and super foods acts rich sources.

Why Does Collagen Fall as You Age?

Here are natural collagen rich superfoods, you can consume:

Vitamin C Rich Fruits Guava, Amla, and kiwi help stimulate collagen supporting skin repair and hydration.

Strawberries are rich in polyphenols, reducing oxidative stress, while oranges provide hydration and vitamin for rebuilding the skin. These fruits are catalysts essential for youthful and resilient skin.

Meats

Leafy Greens and Nuts

Supplements

Collagen is the perfect ingredient for glowing skin and it is all over the internet–coffee, Collagen is added to coffee by mixing peptides which dissolve easily in hot liquid and powders that give comparatively quicker results. Type 1 Collagen is usually considered the best for skin.

Tiny but mighty, eating blueberries not only gives you a sweet taste but also can be extremely beneficial for your entire body.

Extremely rich in antioxidants called anthocyanins, they help with slowing down brain aging. Along with this, the fruit also helps regulates blood pressure and cholesterol levels, overall improving cardiovascular health.

Although they might sound beneficial, they are pricey and inaccessible to a majority of the public.

However, experts have now revealed that guava can provide the body with more benefits than blueberries at half the price.

Why Is Guava Better Than Blueberries?Guavas are living proof that appearances are deceptive. Packed with nearly five times more Vitamin C (about 228mg) and loaded with digestive fibers, this winter fruit is perfectly suited for everyday snacking.

According to Healthline, a single guava can fulfill 12 percent of your recommended daily intake of fiber. A 2025 overview by PubMed also shows that guava leaves have been researched for managing blood sugar levels.

Guavas contain soluble fibers which slow down the digestion and absorption of sugars, preventing sudden spikes in glucose levels. Previous research also shows that regular consumption can help improve insulin sensitivity and lipid profiles, benefiting metabolic health.

With significantly higher Vitamin C content than blueberries, this fruit supports collagen production and gives you brighter skin and protection against premature aging.

Which Other Fruits Are Rich in Antioxidants?

While cranberries support urinary tract health by preventing bacterial adhesion and reducing inflammation, strawberries are rich in Vitamin C and folate and help with blood sugar regulation which can help stabilize glucose levels.

After all the environmental damage and aging that you have caused your skin, it deserves the utmost care and protection to rebuild and glow.

While blueberries have been linked to improving skin texture, goji berries are far rich in flavonoids that can neutralize free radicals, boost collagen and protect against UV damage.

Blackberries and raspberries are excellent sources that reduce oxidative stress and inflammation.

Experts recommend incorporating a mix of these fruits in your diet to help repair your DNA, reduce inflammation and prevent chronic conditions.

If you drink 14 drinks per week, the American Cancer Society's peer-reviewed journal Cancer, noted that you have a 25% higher risk of developing colorectal cancer. This also means that you have a 95% higher risk of developing rectal cancer as compared to those who drink an average of one drink per week.

Moderate alcohol intake is measured as seven or less drinks per week, which is associated with a lower risk. However, experts have time and again stressed that there is no safe limit of drinking.

"While the data on former drinkers were sparse, we were encouraged to see that their risk may return to that of the light drinkers,” co–senior author Erikka Loftfield of the National Institutes of Health's National Cancer Institute said in a news release.

What the Study Found

The findings come from an analysis of U.S. adults who took part in the National Cancer Institute’s Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial. Researchers tracked 88,092 participants over a 20 year period and identified 1,679 cases of colorectal cancer during that time.

The data showed a clear pattern. Higher lifetime alcohol consumption was linked to a higher risk of colorectal cancer, with the strongest association seen for rectal cancer. However, the study also offered encouraging news. People who stopped drinking saw their risk decline, highlighting that lifestyle changes can still make a difference later in life.

Read: Drinking Alcohol Could Damage Your DNA, Not Just Your Liver Or Heart

Colorectal Cancer Is Rising in Younger Adults

These findings come at a time of growing concern about colorectal cancer rates, especially among younger people. Earlier this month, the American Cancer Society reported that colorectal cancer has become the leading cause of cancer-related deaths among people under 50 in the United States.

Dr. Ahmedin Jemal, senior author of the report and senior vice president of surveillance, prevention and health services research at the American Cancer Society, said the trend is alarming. He noted that the speed at which colorectal cancer rates have risen among younger adults means it can no longer be considered a disease that only affects older people.

Also Read: Diljit Dosanjh Swears By This Green Juice to Power His 4am to 9pm Routine

Changing Guidance on Alcohol Consumption

Federal health guidance around alcohol has also shifted. Instead of specifying how many drinks are considered safe, the latest dietary guidelines advise Americans to drink less overall. People with certain health conditions are encouraged to avoid alcohol entirely.

Christopher Kahler, director of the Center for Alcohol and Addiction Studies at Brown University, has previously explained that no amount of drinking is completely risk-free. According to him, health risks increase with higher consumption, which is why current guidelines focus on reducing intake rather than defining a safe threshold.

What This Means for Individuals

Taken together, the research reinforces a simple message. Heavy drinking raises cancer risk, drinking less is better for health, and stopping alcohol use can help lower the chances of developing colorectal cancer. With rates rising in younger adults, experts say awareness and prevention efforts are more important than ever.