The monsoon season brings much-needed relief from the heat, but it also brings a rise in infections, fluctuating temperatures and changes in humidity that can affect overall health. While coughs, colds and viral fevers are common during this time, it is equally important not to overlook neurological emergencies such as stroke.
A stroke can happen at any time of the year, but certain factors associated with the rainy season—such as uncontrolled blood pressure, dehydration due to fever, infections and reduced physical activity—may increase the risk in susceptible individuals. More importantly, people sometimes mistake the early symptoms of a stroke for dizziness, fatigue or weakness caused by seasonal illness, leading to dangerous delays in treatment.
Recognising the stroke warning signs and reaching a hospital without delay can make the difference between recovery and permanent disability.
What Is a Stroke?
A stroke occurs when the blood supply to part of the brain is interrupted or reduced, depriving brain cells of oxygen and nutrients. Within minutes, brain cells begin to die.
There are two main types of stroke. In and Ischaemic stroke, the condition is caused by a blockage in a blood vessel supplying the brain. This is also the most common type, as this accounts for nearly 85% of all strokes. A Haemorrhagic stroke is caused by the rupture of a blood vessel, leading to bleeding within or around the brain. Another related condition is a transient ischaemic attack (TIA), often called a "mini-stroke," which produces temporary stroke-like symptoms that resolve within minutes or hours. Although the symptoms disappear, a TIA is a serious warning sign that a major stroke may follow if appropriate treatment is not started.
Why Is Time So Important?
Stroke is a medical emergency. Every minute after a stroke begins, nearly two million brain cells can be lost if blood flow is not restored.
For many patients with an ischaemic stroke, clot-dissolving medication (intravenous thrombolysis) is most effective when given within 4.5 hours of symptom onset. Some patients with large vessel blockages may also benefit from mechanical thrombectomy, a minimally invasive procedure to remove the clot, if performed within an appropriate time window after careful evaluation.
Early treatment significantly improves the chances of recovery and reduces the risk of long-term disability.
Know the Warning Signs: Remember BE FAST
Other Symptoms That Should Never Be Ignored
Some strokes may present with less typical symptoms, including:
- Sudden severe headache unlike any previous headache
- Confusion or altered consciousness
- Difficulty understanding speech
- Sudden numbness affecting one side of the body
- Difficulty swallowing
- Sudden nausea or vomiting accompanied by neurological symptoms
Even if these symptoms last only a few minutes, they require urgent medical evaluation.
Can the Monsoon Increase Stroke Risk?
The rainy season is not known to directly cause stroke, but several seasonal factors may contribute to an increased risk in vulnerable individuals.
For example:
- Viral and bacterial infections usually trigger inflammation, which increases the tendency for blood clot formation.
- Fever and inadequate fluid intake may lead to dehydration, which can increase blood viscosity and strain the cardiovascular system.
- Sudden weather changes may contribute to fluctuations in blood pressure in susceptible individuals.
- Reduced physical activity during prolonged rainy periods can affect blood pressure, blood sugar and overall cardiovascular health.
- People with chronic conditions may become less consistent with medications or routine health monitoring during seasonal illness.
Individuals with pre-existing vascular disease are therefore advised to remain particularly vigilant during the monsoon months.
Who Is at Higher Risk?
Anyone can have a stroke, but the risk is higher in people with:
- High blood pressure
- Diabetes
- High cholesterol
- Atrial fibrillation and other heart rhythm disorders
- Previous stroke or TIA
- Smoking or tobacco use
- Obesity
- Chronic kidney disease
- A family history of stroke
- Age above 55 years, although strokes are increasingly seen in younger adults as well
Managing these risk factors significantly lowers the likelihood of stroke.
What Should You Do If Someone Is Having a Stroke?
If you suspect a stroke:
- Call emergency medical services immediately or go to the nearest hospital with emergency stroke care.
- Note the exact time when symptoms began or when the person was last seen well.
- Do not give food, water or medications unless instructed by a healthcare professional.
- Do not allow the person to drive themselves to the hospital.
- Stay with them and monitor their breathing and responsiveness until help arrives.
Most importantly, do not wait for the symptoms to disappear. Even temporary symptoms may indicate a TIA and require urgent evaluation.
Reducing Your Stroke Risk During the Monsoon
Simple preventive measures can help protect brain health and vascular health:
- Take blood pressure, diabetes and cholesterol medications regularly.
- Stay adequately hydrated, especially during fever or infections.
- Eat a balanced diet with limited salt and saturated fat.
- Stay physically active whenever possible.
- Avoid smoking and excessive alcohol consumption.
- Seek prompt treatment for infections and do not ignore persistent fever.
- Attend regular health check-ups if you have known cardiovascular or neurological conditions.
Comprehensive Stroke Care at STAR Hospitals
Rapid diagnosis and treatment are essential for achieving the best possible outcome after a stroke. At STAR Hospitals, dedicated stroke specialists, neurologists, neurosurgeons and emergency physicians work together to provide timely, evidence-based care around the clock. Eligible patients can receive intravenous thrombolysis and mechanical thrombectomy, along with comprehensive neurocritical care, rehabilitation and long-term stroke prevention strategies.
Remember the BE FAST warning signs and seek immediate medical attention. Early intervention can save brain function, reduce disability and, in many cases, save lives.
