‘No weakness. No speech loss. No facial droop’: Neurosurgeon explains the dangers of silent strokes that strike healthy people without warning

Dr Dhruv Chaturvedi mentions, “Silent strokes, as the name suggests, often occur without clear warning signs”

What is a silent stroke? (Source: Freepik)

A Michigan-based neurosurgeon recently drew attention to a health issue that often goes unnoticed. In an Instagram post, he wrote, “I’m not sharing this to scare you — I’m sharing it because I see it every week in my practice. People who feel fine, exercise, eat well… and yet, when we scan their brain, there are small areas of damage they never knew existed.”

He explained that a silent stroke, also called a “mini” or “covert” brain injury, occurs without the usual signs associated with a major stroke. “No weakness. No speech loss. No facial droop,” he wrote. Because it doesn’t announce itself in the typical way, many people don’t even realise they’ve had one until years later. However, he warned that “over time, these silent strokes can lead to memory decline, balance issues, and even dementia.”

Highlighting the importance of prevention, the neurosurgeon shared that “your brain can be hurting long before you feel it. And it’s not rare. It’s just silent.” He urged people to be proactive about their health and listed some key precautions: “Check your blood pressure and cholesterol regularly. Take sleep, stress, and physical activity seriously — they protect your vessels. If you’ve ever had unexplained dizziness, brain fog, or ‘just don’t feel right,’ don’t ignore it. Early detection can change everything. Your brain doesn’t send warning lights — but it always leaves clues.”

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If silent strokes have no obvious symptoms, how can people detect them early?

Dr Dhruv Chaturvedi, director, Neurosurgery at PSRI Hospital, tells indianexpress.com, “Silent strokes, as the name suggests, often occur without clear warning signs like weakness or speech difficulty. However, there can be subtle changes that people should not ignore. These may include mild memory lapses, difficulty concentrating, unsteadiness while walking, or slight numbness in any part of the body.”

He continues, “Some may experience mood changes or slower thinking, which are often mistaken for ageing or stress. The only definitive way to detect a silent stroke is through imaging tests like an MRI, which can reveal small areas of brain damage. People with diabetes, hypertension, or high cholesterol should get regular check-ups, as they are at higher risk. Early detection through preventive screening is crucial for protecting long-term brain health.”

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How do lifestyle factors influence the risk of silent strokes or long-term brain damage?

Dr Chaturvedi mentions that healthy sleep, regular exercise, and stress management play a key role in maintaining blood vessel integrity. During sleep, the brain clears out toxins and regulates blood pressure — poor sleep disrupts this balance, increasing the risk of vascular injury. Chronic stress elevates cortisol levels, which can damage blood vessels and raise blood pressure, making silent strokes more likely.

On the other hand, he adds that physical activity improves circulation, strengthens the heart, and keeps blood sugar and cholesterol in check. “Even 30 minutes of brisk walking five times a week can reduce the risk of stroke significantly. A balanced diet, adequate hydration, and limiting alcohol or smoking further protect the brain’s microcirculation and reduce the likelihood of silent neurological damage.”

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A post shared by Jay Jagannathan, MD | Michigan Neurosurgery Institute (@jagannathanneurosurgery)

Since silent strokes can increase the risk of dementia and memory loss over time, can these effects be slowed or reversed once detected?

While brain cells damaged by a stroke cannot regenerate, the progression of cognitive decline can often be slowed with timely intervention. Once silent strokes are detected, the goal is to prevent further damage.

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“This involves controlling blood pressure, blood sugar, and cholesterol through medication and lifestyle changes. Cognitive exercises, regular physical activity, and good sleep hygiene can enhance brain plasticity and support healthy neural connections. Patients should also adopt a diet rich in antioxidants, omega-3 fatty acids, and green leafy vegetables to support brain function. Regular follow-up with a neurologist and imaging when advised helps monitor recovery and risk. Early action and consistent management can go a long way in preserving memory and cognitive abilities,” concludes Dr Chaturvedi.

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

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