Sometimes the food you eat or the behavior you exhibit can be a sign of a deficiency and condition you may have. It is similar to when your stomach growls, which signifies that you are hungry. Other signs you may not know about are feeling fatigued when you do not drink enough water, and if you are experiencing a headache then you may need to eat etc. These things happen because they are connected in one way or the other, when you body lacks a specific nutrient you need throughout your day, it can manifest in different ways, let’s take iron for example.

Iron is like the delivery truck for oxygen in your body. It helps your red blood cells carry oxygen from your lungs to all your tissues. The Red Cross Blood Donation explains that when you don't have enough iron, your body can't make enough of these oxygen-carrying cells. This is called iron deficiency, and it can lead to anemia. You might feel very tired, look pale, or get dizzy easily. Headaches, cold hands and feet, and weak hair and nails are also common signs. Because iron is so vital for many of your body's functions, a lack of it can really affect your overall health and energy levels. It's important to recognize these signs and get checked by a doctor if you suspect you might have an iron deficiency.

What is Pagophagia and Pica?

Sometimes, your body sends strange signals when it's missing something important. One unusual signal for iron deficiency is wanting to eat ice, which doctors call pagophagia. This is part of a bigger problem called pica, where people crave things that aren't food. Other examples of pica are wanting to eat dirt, clay, or even starch. It's not just these things; some people crave things like coal, chalk, paper, or hair. While kids get pica more often, adults with low iron can have it too, even if they don't have anaemia. This weird craving is your body's way of trying to tell you something's wrong, even if it seems odd.

Eating things that aren't food can be risky. For example, eating dirt could expose you to harmful germs or heavy metals. Eating large amounts of ice might not seem dangerous, but it can sometimes hurt your teeth or gums. Ingesting non-food items can lead to serious problems like poisoning, where harmful substances build up in your body. It can also cause blockages in your intestines, which can be very painful and dangerous. Symptoms like stomach pain, bloating, feeling very tired, nausea, and diarrhea can signal that something is wrong. If you find yourself constantly wanting to eat ice or other non-food items, it's really important to talk to a doctor. They can help figure out why you're having these cravings and make sure you stay safe.

How Can You Make This Better?

If you're craving ice or other non-food items, it's important to see a doctor. They'll ask about your symptoms and might do some blood tests to check your iron levels. It's possible that your cravings are caused by iron deficiency, but they could also be related to other nutritional deficiencies or even emotional problems. Things like stress, obsessive-compulsive disorder, or developmental issues can sometimes cause pica. The doctor will try to figure out the root cause of your cravings. If it's an iron deficiency, they might suggest taking iron supplements or changing your diet. If it's an emotional issue, they might recommend talking to a therapist. Getting the right diagnosis and treatment is important for your health and well-being.

You open Instagram for "just five minutes". Forty-five minutes later, you look up — and you have forgotten why you picked up your phone in the first place.

If this sounds disturbingly familiar, you are not alone. Across India, neurologists are seeing something deeply concerning: a generation of young, otherwise healthy individuals who are struggling to recall names, lose their train of thought mid-sentence, and find sustained focus nearly impossible. Informally, it's being called "brain rot" — and it is no longer a meme. It is a medical reality.

"The brain is not designed for 300 micro-decisions per hour. When you doom-scroll, you are not relaxing — you are exhausting your prefrontal cortex."

Reels, shorts, and endless social media feeds are engineered to exploit the brain's dopamine reward system. Every swipe delivers a micro-burst of novelty. The hippocampus — our memory consolidation center — requires periods of quiet and depth to encode information properly.

Constant digital stimulation denies it that window. The result is shallow processing: we end up consuming huge amounts of content but actually retain very little of it. Over time, this rewires the brain's attention architecture and makes it difficult to focus on anything that does not provide instant gratification.

The concern is particularly acute for India's youth. Studies suggest Indian teenagers and young adults spend upwards of five to seven hours daily on screens — a figure that has accelerated dramatically post-pandemic. In my clinical practice, I am seeing a rising number of patients in their 20s and 30s presenting with complaints that were once associated with middle age: difficulty concentrating, poor short-term memory, mental fatigue, and disrupted sleep. Investigations reveal no structural pathology. The culprit, almost invariably, is digital overconsumption.

What Can You Do?

The good news: the brain is neuroplastic. Damage from digital overuse is largely reversible if addressed early. Begin with intentional digital detox windows — no screens for the first hour after waking and the last hour before sleep.

Practice deep reading, even fifteen minutes daily; it actively rebuilds attention span. Physical exercise, particularly aerobic activity, promotes neurogenesis in the hippocampus. And critically, reclaim boredom — allow your mind unstructured rest, because that is precisely when memory consolidation and creative thinking occur.

Doom-scrolling is not a harmless habit. It is a slow erosion of your cognitive sharpness. The algorithm does not care about your memory. You must. Protect your attention — it is the foundation of everything your brain does.

While salt is often blamed for high blood pressure, it is not the only factor contributing to those numbers. Many people carefully reduce salt intake yet continue to struggle with hypertension because several hidden causes often go unnoticed.

Understanding these triggers can help people take better control of their heart health before complications arise.

One major but overlooked reason is chronic stress. When the body stays under constant mental pressure, stress hormones like cortisol and adrenaline rise repeatedly. This causes blood vessels to tighten and the heart to work harder, gradually increasing blood pressure over time. Poor sleep also plays a significant role. People who sleep less than six hours regularly or suffer from conditions like sleep apnea may experience uncontrolled hypertension despite following a healthy diet.

Hormonal imbalance is another hidden culprit. Disorders of the thyroid or adrenal glands, as well as conditions like PCOS, can affect blood pressure regulation. In some individuals, high blood pressure may actually begin because of hormonal changes rather than lifestyle alone. This is why persistent hypertension should never be ignored or treated casually at home.

Certain medications can also cause a silent increase in blood pressure. Frequent use of painkillers, steroids, nasal decongestants, birth control pills, or even some herbal supplements may contribute to rising readings. Excessive caffeine, smoking, alcohol consumption, and a sedentary lifestyle further add to the risk.

Weight gain around the abdomen is particularly harmful because it increases resistance in blood vessels and affects how the body handles insulin. Similarly, unmanaged diabetes and high cholesterol damage arteries over time, making it harder for blood to flow normally.

Another commonly missed factor is dehydration. When the body lacks enough water, sodium concentration rises, forcing the heart to pump harder. Even low potassium intake from poor dietary habits can disturb the body’s blood pressure balance.

Why Regular Monitoring Is Important

High blood pressure is often called a “silent killer” because symptoms may not appear until serious complications develop.

Regular health check-ups, monitoring blood pressure at home, staying physically active, sleeping well, and identifying underlying medical conditions are equally important as reducing salt intake.

Managing hypertension requires looking at the complete picture, not just the salt shaker on the dining table.

In India, more than one in four people has hypertension, and cumulatively, over 90 per cent of adults with hypertension are either undiagnosed, untreated, or treated but still live with uncontrolled blood pressure. Experts say this growing burden needs urgent attention.

In an interview with HealthandMe on World Hypertension Day 2026, Professor Vivekanand Jha, Executive Director of The George Institute for Global Health, suggested that one practical solution may be as simple as switching to potassium-enriched low-sodium salt substitutes (LSSS).

Current estimates show that Indians consume between 8 and 11 grams of salt (equivalent to 3.2–4.4 grams of sodium) per day — nearly double the World Health Organization recommended limit of 5 grams of salt (2 grams of sodium).

Low-sodium salt substitutes are composed of approximately 70–75 per cent sodium chloride and 25–30 per cent potassium chloride. They reduce sodium intake while increasing potassium consumption, helping lower blood pressure and reduce cardiovascular risk.

In January 2025, the World Health Organization released guidelines recommending potassium-enriched salt substitutes to combat hypertension and related heart risks. The guidelines suggest replacing regular table salt, which is high in sodium, with potassium-enriched alternatives that may help reduce noncommunicable diseases such as cardiovascular disease and chronic kidney disease by lowering blood pressure.

Dr Jha was also part of a consensus statement released by experts in clinical medicine, public health, and nutrition, recommending potassium-enriched low-sodium salt substitutes as an effective intervention to reduce hypertension and cardiovascular disease in India.

Here are excerpts from the interview:

Q. Is asking people to simply switch to a healthier salt more realistic than expecting them to completely change their diets?

Dr Jha: Public health works best when solutions fit naturally into people’s daily lives. Asking families to completely change what they eat is extremely difficult because food habits are emotional, cultural, and built over generations. But asking them to switch the type of salt they use at home is a much simpler and more achievable step. The taste remains familiar, cooking habits do not change, and yet the health benefits can begin immediately.

In a country like India, where a large proportion of sodium intake comes from salt added during cooking, this becomes a very practical intervention. It is not about perfection — it is about finding solutions that ordinary families can realistically adopt and sustain. There are, of course, other dietary factors that also need attention, such as excessive sugar intake, processed foods, and poor fruit consumption.

Q. High blood pressure medicines are often prescribed quickly. Are doctors giving enough importance to simple dietary changes like switching to healthier salt, or is prevention still underestimated?

Dr Jha: The answer is a definite no.

Our healthcare system is designed around managing disease once it appears, rather than reducing people’s need to come to hospitals by preventing disease in the first place.

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In a busy clinic, physicians often have only a few minutes with each patient, making detailed dietary counselling difficult. At the same time, advice like “eat less salt” can feel abstract or impractical for many patients. There are also systemic incentives that prioritize medicines over preventive care.

We need much stronger integration of nutrition and prevention into routine medical practice. If we truly want to reduce the burden of hypertension and its complications — including cardiovascular disease, stroke, and chronic kidney disease — prevention cannot remain an afterthought.

Q. Low-sodium salt may not suit some people with kidney disease or those on certain medicines. How can these risks be managed without discouraging the wider population from benefiting?

Dr Jha: This is an important conversation and needs to be handled responsibly and transparently. There is a small group of patients — particularly some people with advanced kidney disease or those on specific medications — for whom excess potassium may not be appropriate.

However, for the vast majority of the population, including many people with early-stage kidney disease, low-sodium salt substitutes are safe and beneficial. We have repeatedly shown this through modelling studies.

The challenge is ensuring that a legitimate caution for one group does not unintentionally discourage everyone else. That is why clear labelling, better awareness among healthcare professionals, and honest public communication are essential. Public health decisions are often about balancing risks and benefits, and in this case, the potential population-level benefits are very significant, including for a large majority of patients with chronic kidney disease.

Read More: Heart Diseases, Mental Disorders And Cancer Among 62 Health Risks Linked To Alcohol Use: Study

Q. Emerging evidence suggests increasing potassium may be as important as reducing sodium. Does this change how India should approach hypertension prevention?

Dr Jha: This is a very important point and broadens the conversation in a meaningful way. As it turns out, many physicians are also unaware that potassium intake among Indians is substantially lower than recommended, and that increasing potassium intake can help lower blood pressure and improve cardiovascular health.

What makes low-sodium salt substitutes particularly valuable is that they address both issues together — they reduce sodium while increasing potassium through a product people already use every day. This dual benefit could make a meaningful difference at scale.

It does not replace the need for healthier diets overall, but it does provide a practical and scalable public health tool.