This is what happens to the heart, brain, kidney, and eyes when you have untreated high blood pressure

Dr Sinha points out that delayed diagnosis is a significant problem. Symptoms such as headaches, tiredness, or a fast heartbeat are often ignored or blamed on work stress, especially by people in cities. “In many cases, people only visit a doctor when the condition becomes severe. That’s why regular health check-ups after age 30 or 35 are now often recommended,” he adds.

How high blood pressure harms the body

Uncontrolled hypertension places extra pressure on almost every system in the body, according to Dr Sinha. The heart, in particular, is forced to work harder to pump blood against increased resistance. Over time, this can cause the heart muscle to thicken and enlarge. “Initially, the heart compensates by growing bigger, but if the pressure is not controlled, it eventually becomes weaker and less efficient,” Dr Sinha explains.

The brain is another major organ at risk, he adds. “Persistently high blood pressure can damage blood vessels supplying the brain, significantly increasing the chances of a stroke. Long-term uncontrolled hypertension may also affect memory and cognitive function. These changes happen slowly, which is why people don’t immediately connect them to blood pressure.”

Kidney damage caused by hypertension is often gradual and silent, much like the condition itself. As kidney function deteriorates, symptoms may show up elsewhere in the body. The eyes, too, are vulnerable—damage to the delicate blood vessels in the retina can impair vision over time. “The progression is slow, but the damage can be permanent if left unchecked,” warns Dr Sinha.

Untreated high blood pressure can be risky (Photo: Freepik)

When does the risk become serious?

While any sustained elevation in blood pressure is concerning, certain levels significantly raise the risk of life-threatening complications. “A reading of 140/90 mmHg is itself a red flag,” says Dr Sinha. “The risk increases substantially when blood pressure goes beyond 160/100.”

Even mildly elevated blood pressure, if chronic, can damage the kidneys, heart, and brain. Notably, he points out that otherwise healthy individuals are not immune. “We do see unexpected heart attacks or strokes in people who thought they were fine. Regular medication, along with lifestyle changes, can dramatically reduce these risks,” he notes.

Are lifestyle changes enough?

Dr Sinha stresses the importance of quitting smoking, reducing salt intake, cutting down on oily and processed foods, and engaging in regular physical activity. “These measures are essential for maintaining good heart health and controlling blood pressure,” he says.

However, lifestyle changes alone may not be sufficient, especially if organ damage has already begun, he adds. “In such cases, medication and regular monitoring become necessary to prevent further complications. With rising work-related stress, unhealthy diets, and sedentary habits, cases of hypertension—and even strokes—are increasingly being reported among younger professionals.”

The message, he emphasises, is clear: don’t wait for symptoms. “Monitoring blood pressure, especially after the age of 30–35, and seeking timely medical advice can make a critical difference. High blood pressure is manageable—but only if it is taken seriously.”

DISCLAIMER: This article is based on information from the public domain and/or the experts we spoke to. Always consult your fitness practitioner before starting any routine.