New Delhi, Sept. 21 -- A heart attack may feel sudden, but is the risk really sudden at all?
Often, the real story begins years earlier. Long before an ambulance is called or a patient enters a cardiac care unit, the body may have been carrying high blood pressure, abnormal cholesterol, diabetes, arterial damage or other risks for years, often without obvious symptoms. That is why the World Heart Federation's message for World Heart Day 2026, "Don't Miss a Beat", remains so relevant. The campaign reminds us that heart disease can hide in plain sight and calls for greater attention to symptoms, prevention, and the systems that enable timely care.
Last year, I wrote about the scale of India's cardiovascular challenge and the importance of early detection. This year, perhaps we need to take that thought one step further and ask how early can "early" become?
The future of heart health cannot begin only when a person reaches an emergency room. It has to begin in homes, workplaces, neighbourhood clinics and primary health centres, where risk can be recognised before it becomes a crisis. It also requires us to rethink what innovation means. The future is certainly being shaped by artificial intelligence, connected diagnostics and new medical devices, but some of the most important innovations are simpler. They include linking smaller hospitals to specialists, standardising treatment, training first responders and ensuring that the right decision can be taken quickly wherever a patient happens to live.
India is already showing what this can look like. Karnataka's statewide STEMI programme has connected rural hospitals to specialist cardiac hubs through connected ECG machines, artificial intelligence, telecardiology and cloud-based tracking. According to NITI Aayog's Frontier Tech platform, more than 11.77 lakh patients were screened between March 2023 and February 2026. The programme achieved a median door-to-needle time of just 13 minutes for eligible heart attack patients, while specialist confirmation could be obtained remotely rather than waiting for a cardiologist to be physically present at every facility.
The significance goes beyond technology. A nurse or doctor in a smaller hospital can perform an ECG, transmit it, receive specialist guidance and begin treatment while referral is being arranged. In a cardiac emergency, where every delay matters, bringing expertise to the patient may sometimes be as important as bringing the patient to expertise.
A recent Indian analysis provides another glimpse of this model. More than 45,000 AI-assisted ECGs were performed across 66 spoke centres connected to 10 hubs in six states. Critical ECGs had an average diagnostic turnaround time of under three minutes. Artificial intelligence here is not a substitute for clinical judgement. Its value lies in helping identify potentially dangerous patterns quickly and directing specialist attention to patients who may need it most.
Even the humble stethoscope is being reimagined. Researchers at MNNIT Prayagraj recently developed a patented AI-enabled stethoscope designed to analyse heart sounds and assist in identifying valvular heart disease in real time, particularly with an eye on resource-limited settings. Such technologies are still emerging and must prove their value through rigorous clinical use, but they demonstrate an important direction for Indian innovation. The aim is to make advanced screening more accessible rather than restricting it to major hospitals.
Tamil Nadu offers another lesson. Its government-supported heart attack network linked 18 medical college hospitals with catheterisation facilities to 188 district and taluk hospitals. Between 2019 and 2023, the network treated 71,907 people with ST-elevation myocardial infarction, or STEMI. Telemedicine enabled clinicians at smaller centres to share ECGs and obtain guidance from cardiologists at hub hospitals, while access to appropriate cardiac intervention improved.
The lesson is important. Innovation is not always the invention of a new treatment. Sometimes it is ensuring that a treatment we already know works reaches the patient in time.
India is also contributing to technologies used inside cardiac centres themselves. The Indian-developed Myval transcatheter heart valve, for example, was tested against an established international valve in a large randomised trial involving more than 1,000 patients and was found to be non-inferior on the study's main one-year outcome. This matters because a stronger culture of indigenous medical innovation can help India become not merely a user of advanced cardiovascular technology, but increasingly a developer of solutions relevant to its own scale, affordability needs and clinical realities.
Yet we should be careful not to confuse innovation with gadgets alone. One of the biggest cardiovascular opportunities remains one of the least dramatic. It is controlling high blood pressure. Hypertension can quietly damage the arteries, heart, brain and kidneys for years. A smart watch may tell us more about our bodies, but it cannot replace knowing our blood pressure, following prescribed treatment consistently, remaining physically active and paying attention to diabetes, cholesterol, weight management, sleep, stress and balanced nutrition.
This is where international experience becomes particularly useful.
Chile and the wider HEARTS initiative in the Americas show what can happen when hypertension management is made systematic rather than complicated. The approach emphasises standard treatment protocols, access to medicines, team-based care and regular monitoring. In one Chilean study, 65 per cent of patients treated under a simplified standardised protocol reached their blood pressure target after one year, compared with 37 to 41 per cent under usual care. Across HEARTS in the Americas, more than four million people are now receiving standardised hypertension treatment, with 62 per cent achieving blood pressure control.
India's lesson is not to copy another country's health system, but to recognise the power of consistency. Millions of individual consultations become far more effective when primary care follows clear protocols and patients are not lost between diagnosis, treatment and follow-up.
Denmark offers a different lesson. Heart health is also a civic skill. Basic life-support training has been required for people obtaining driving licences, helping make CPR knowledge far more widespread. Research covering out-of-hospital cardiac arrests between 2005 and 2019 found that greater participation in basic life-support courses was associated with increased bystander CPR and improved 30-day survival.
For India, CPR and automated external defibrillator awareness should increasingly become part of schools, colleges, workplaces, housing societies, airports, railway stations, sports facilities and other public spaces. We should not assume that only a doctor can save a life in the first few minutes of a cardiac arrest. A heart emergency can happen anywhere, which means the first link in the chain of survival is often an ordinary citizen standing nearby.
Finland's North Karelia experience reminds us of something even broader. Beginning in the 1970s, a population-wide effort focused on major cardiovascular risk factors through community action, health services, public awareness and preventive care. Over the following decades, coronary mortality among middle-aged people fell dramatically. The deeper lesson is that cardiovascular prevention cannot rest entirely on individual discipline. Access to preventive care, opportunities for physical activity, health literacy and the environments in which people work and live all influence heart health.
This balance is essential. We need advanced cardiac centres, but we also need healthier communities. We need artificial intelligence, but we also need human awareness. We need faster emergency networks, but we also need fewer people reaching the point at which an emergency response becomes necessary.
For individuals, the message can be kept simple. Know, notice and act. Know your blood pressure, blood sugar, cholesterol and family history. Notice unusual chest pressure, unexplained breathlessness, palpitations, fainting, persistent fatigue or other changes, and remember that cardiovascular symptoms do not always appear in the same way in every person. Act on risk before symptoms force you to.
Heart health is also built through everyday choices. Regular physical activity, balanced nutrition, adequate sleep, stress management, routine health checks and adherence to prescribed treatment can all contribute to reducing cardiovascular risk. None of these actions is dramatic in isolation, but their value lies in consistency. Wellness is rarely created by one major decision. More often, it is shaped by the smaller decisions repeated over time.
At the Illness to Wellness Foundation, our purpose is not only to create awareness about illness but to encourage the habits, knowledge and systems that make wellness possible. World Heart Day gives us an opportunity to move the conversation from fear of heart disease towards practical ownership of heart health. Prevention is not a single health check on 29 September. It is a relationship with our health that continues throughout the year.
The next era of cardiovascular care will be defined not simply by how sophisticated our hospitals become, but by how successfully we connect prevention, primary care, technology, emergency response and informed citizens. If we can recognise risk sooner, respond faster and make healthier choices easier to sustain, many cardiac emergencies need never become emergencies at all.
Let us not wait for our heart to tell us something is wrong before we begin to listen. The best time to protect it is before it has to sound the alarm.
Views expressed are personal. The writer is the Chairperson, Advisory Council, Illness to Wellness Foundation
Published by HT Digital Content Services with permission from Millennium Post.