You might think that you’d know if you were having a stroke by the known warning signs like slurred speech, a drooping face or collapsing mid-sentence. However, in many cases, strokes happen without warning, pain or obvious signs. Read on to learn more about how silent stroke symptoms can sneak up on you when you least expect them.

What is a Silent Stroke?

A silent stroke usually occurs when blood flow to a small area of the brain is blocked, depriving it of oxygen. While the brain tissue dies, just like in a regular stroke, the affected area is often located where symptoms aren’t immediately noticeable. However, the most life-threatening risk is that multiple silent strokes can accumulate over time, causing irreversible brain injury.
The worst-case scenario is that you could suffer from memory loss, confusion, mobility challenges and dementia. Since these strokes don’t have obvious signs, they can affect the cerebellum, which doesn’t control vital functions but is responsible for movement and coordination. Moreover, you might feel off, find yourself forgetting minor things or lose your balance and brush it off without knowing that you’re experiencing a silent stroke.

When Silent Strokes Become Life-Threatening

The threat of a silent stroke is that it occurs without your knowledge. Usually, people will only find out about it when undergoing an unrelated brain scan. Research also suggests that if you have experienced one, others are likely to follow.
Most importantly, each silent stroke episode increases the risk of a major stroke that can lead to permanent physical complications. Taking precautions such as managing underlying health conditions like diabetes, high blood pressure and cholesterol can help prevent silent strokes. Since they’re more common than most people realise, regular health screenings and lifestyle changes are important for early detection and managing known risk factors.

The Minor Signs You Should Never Ignore

Because silent strokes don’t cause the typical “FAST” (Face, Arms, Speech, Time) symptoms that are associated with regular strokes, they’re incredibly easy to miss. Yet your body may still signal that something is wrong and that immediate medical attention is required. These are minor silent stroke signs you should be on the lookout for:

• Sudden confusion or memory gaps: You forget simple things like why you walked into a room or struggle to recall familiar names.
• Brief loss of balance or coordination: You stumble, trip or feel dizzy for no reason.
• Unexpected vision changes: Blurred or double vision or brief vision loss in one eye.
• Mild speech problems: You slur words for a moment or can’t find the right word mid-sentence.
• Numbness or weakness: This occurs in one side of your face or body, even if it passes quickly.
• Sudden mood changes: Irritability, anxiety or emotional swings without an apparent cause.

Who’s Most at Risk?

Silent strokes can affect anyone, but certain factors make you more vulnerable. These are the common risk factors for silent strokes:

• High blood pressure (hypertension) can damage blood vessels in the brain, increasing the risk of clots.
• Diabetes, since high blood sugar levels affect the arteries, disrupting blood flow to the brain.
• High cholesterol occurs because the fatty deposits narrow the arteries, restricting oxygen supply.
• Smoking increases blood clotting and damages vessel walls.
• Atrial fibrillation, which is an irregular heartbeat, allows clots to form and travel to the brain.
• Obesity and inactivity can increase inflammation and strain the cardiovascular system.
• Age and family history are associated with a higher risk, which rises after 55, especially if strokes run in the family.

How Silent Strokes Are Diagnosed

In most cases, silent strokes are detected during a CT or MRI scan. This could be related to your doctor investigating an unrelated problem, such as a persistent headache or memory issues that start to affect your everyday life. A brain scan is the most effective way to reveal when brain tissue has been damaged, a condition known as white matter lesions, which can indicate a silent stroke.

Can Silent Strokes Be Prevented?

The good news is that there are things you can do to prevent and reduce your risk of multiple silent strokes. From lifestyle habits to ensuring you know your medical needs, there are consistent choices that can help you in the long run. Here are some lifestyle choices you can consider:

• Control your blood pressure and have it checked regularly. It’s important to aim for readings below 120/80 mmHg.
• Manage diabetes carefully. You should monitor your blood sugar and follow your doctor’s treatment plan.
• Eat food that’s suitable for your brain health. Focus on foods like fish, which are rich in omega-3s, leafy green vegetables, whole grains, and low-sodium options.
• Quit smoking as soon as possible. Reducing exposure to cigarette toxins is one of the single most powerful steps you can take to protect your blood vessels.
• Moving more and aiming for at least 30 minutes of brisk walking daily can help improve circulation and strengthen your heart.
• Watch your weight and cholesterol by keeping your BMI in check. You should also ask your doctor about cholesterol-lowering foods or medication to ensure you understand weight management options suitable for your lifestyle.
• Limit alcohol consumption. Excessive drinking raises blood pressure and weakens the heart.
• Get regular check-ups since routine screenings can reveal early signs of vascular disease before a stroke strikes.

The complications that can linger after a silent stroke are enough warning to ensure you take better care of your brain and heart health. You don’t have to wait for a brain scan to take proactive measures and prevent the risk of a major stroke when you can incorporate healthy habits from today. When you sign up for an Affinity Health Day-to Day or Combined plan, you can access unlimited Telehealth consultations and a nationwide network of GPs to help with early detection of potential stroke risks.