A stroke is a life-threatening medical emergency that occurs when there is an interruption to the blood supply in the brain, causing brain cells to die due to a lack of oxygen. Strokes can lead to changes in behaviour, such as anger, aggression, apathy, and inappropriate social behaviour. While the signs and symptoms of a stroke typically come on suddenly, some people may experience emotional and personality changes in the days and weeks leading up to a stroke, such as irritability, confusion, and trouble speaking or understanding speech. If you or someone you know is exhibiting these behavioural changes, it is important to seek medical attention as soon as possible to prevent permanent damage or death.
Characteristics | Values |
---|---|
Behavioural changes | Anger, aggression, apathy, irritability, fatigue, inappropriate behaviour, depression, anxiety |
Physical symptoms | Drooping or numbness on one side of the face, weakness in arms or legs, slurred speech, dizziness, loss of balance, blurred or <co: 0,1,2,4,5>double vision, severe headache, nausea, vomiting |
What You'll Learn
- A stroke is a medical emergency that requires immediate attention
- Strokes are caused by a blockage or damage to blood vessels in the brain
- Risk factors include high blood pressure, high cholesterol, diabetes, and atrial fibrillation
- Warning signs include face drooping, arm weakness, and speech problems
- Behavioural changes, such as anger and aggression, can occur after a stroke
A stroke is a medical emergency that requires immediate attention
Behavioural changes can occur before a stroke, but they are not the only indicators of an oncoming stroke. A stroke is a medical emergency that requires immediate attention. Here are some key reasons why:
Brain Cells Start to Die
When a stroke occurs, there is an interruption to the blood supply in the brain, often due to a blocked artery or bleeding in the brain. Without a steady supply of blood, brain cells in the affected area start to die from a lack of oxygen. The longer the interruption, the more severe the consequences.
Permanent Brain Damage or Death
Strokes are life-threatening emergencies, and immediate medical attention is critical to prevent permanent damage or death. Every minute counts, and calling emergency services immediately improves the chances of survival and lowers the risk of long-term disability.
Stroke Symptoms
The signs of a stroke often appear suddenly, and it is important to act quickly. Some common stroke symptoms include:
- Face drooping or numbness
- Arm weakness or numbness
- Speech problems such as slurring or difficulty repeating sentences
- Sudden dizziness, loss of balance, or coordination issues
- Severe headache with no known cause
- Confusion or trouble understanding speech
- Double vision or other eyesight issues
Mini-Strokes
Mini-strokes, or transient ischemic attacks (TIAs), are warning signs that a more serious stroke may be imminent. About 4 in 10 people who experience a mini-stroke will go on to have a major stroke. Therefore, it is crucial to seek medical help even if the symptoms of a mini-stroke disappear.
In summary, a stroke is a medical emergency that necessitates immediate attention due to the potential for permanent brain damage or death. Recognizing the signs and symptoms of a stroke, as well as mini-strokes, and seeking prompt medical care are crucial for improving outcomes and reducing the risk of long-term disability.
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Strokes are caused by a blockage or damage to blood vessels in the brain
Strokes are a life-threatening medical emergency caused by interrupted blood flow to the brain. They occur when blood vessels in the brain are blocked or damaged, disrupting the brain's blood supply and causing brain cells to die from a lack of oxygen. This interruption of blood flow can happen in two main ways, leading to the two main types of strokes: ischemic and hemorrhagic.
Ischemic strokes, accounting for about 80% of all strokes, are caused by a blockage in a blood vessel supplying the brain. This blockage can be due to a blood clot, fatty deposits, or cholesterol plaque buildup. When a blood vessel is blocked, brain cells are deprived of oxygen and nutrients, leading to their death within minutes. Thrombotic strokes, a type of ischemic stroke, are caused by blood clots that develop in the blood vessels inside the brain, while embolic strokes are caused by clots or plaque debris that travel to the brain from elsewhere in the body.
Hemorrhagic strokes, on the other hand, are caused by bleeding in or around the brain. This type of stroke occurs when a blood vessel in the brain ruptures and spills blood into nearby tissues. The resulting pressure build-up in the surrounding brain tissue causes further damage and irritation. Hemorrhagic strokes can be classified into two categories: intracerebral hemorrhage, where bleeding occurs from blood vessels within the brain, and subarachnoid hemorrhage, where bleeding occurs between the brain and the membranes covering it.
The effects of a stroke depend on the duration of the interruption in blood flow. A transient ischemic attack (TIA) or "mini-stroke" is a temporary blockage that can cause symptoms such as headache, numbness, or tingling. These symptoms can last from a few minutes to up to 24 hours and should not be ignored, as they may precede a more serious stroke. About 4 in 10 people who experience a TIA will go on to have a major stroke.
The warning signs of a stroke can be remembered using the acronym FAST:
- Face Drooping – One side of the face droops or is numb, resulting in an uneven smile.
- Arm Weakness – One arm is weak or numb and may drift downward when asked to lift both arms.
- Speech problems – The person may have slurred speech or difficulty repeating sentences.
- Time to call an ambulance – Stroke is an emergency, and every minute counts.
Other possible symptoms include sudden dizziness, loss of balance or coordination, sudden severe headache, and confusion.
Strokes are a medical emergency, and immediate treatment is critical to prevent permanent damage or death. If you or someone you know is exhibiting any of these warning signs, call for emergency medical assistance immediately.
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Risk factors include high blood pressure, high cholesterol, diabetes, and atrial fibrillation
Strokes are a life-threatening medical emergency that occurs when the brain doesn't receive enough blood flow. This can happen due to a blocked artery or bleeding in the brain. Without a steady supply of blood, brain cells in the affected area start to die from a lack of oxygen.
High blood pressure is the leading cause of strokes and is often referred to as a "silent killer" as it exhibits no warning signs or symptoms. It is a significant risk factor for strokes because it causes gradual damage to the arteries, including those leading to the brain. This damage can lead to a weakened blood vessel rupturing or diseased arteries becoming blocked by clot or plaque buildup. Nearly half of American adults have high blood pressure, and about three out of four people who have a stroke for the first time have high blood pressure.
High cholesterol is another major controllable risk factor for strokes. Cholesterol can lead to a buildup of plaque in the artery walls (atherosclerosis), making it harder for blood to flow through the body and increasing the risk of blocked arteries, which can result in a stroke. Diets high in saturated fat, trans fat, and cholesterol can raise blood cholesterol levels.
Diabetes is a treatable yet independent risk factor for strokes. It can cause circulatory problems by damaging blood vessels and increasing the risk of high blood pressure, atherosclerosis, and coronary heart disease. Many people with diabetes also have high blood pressure and high cholesterol, further increasing their risk. Additionally, diabetes is often associated with being overweight, which is linked to an increased risk of high blood pressure and, consequently, strokes.
Atrial fibrillation (AFib or AF) is an irregular heart rhythm that increases the risk of ischemic stroke. It accounts for about 15% of all strokes in the United States. AFib causes a rapid heartbeat, allowing blood to pool in the heart and form clots that can travel to the brain. High blood pressure is a risk factor for AFib, and uncontrolled high blood pressure can increase the risk of AFib and, subsequently, stroke.
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Warning signs include face drooping, arm weakness, and speech problems
While a stroke is caused by an interruption in the blood supply to the brain, there are several warning signs that can help identify if someone is experiencing a stroke. The most common signs are face drooping, arm weakness, and speech problems, which can be remembered with the acronym FAST.
Face drooping is often the first sign of a stroke. If you notice that one side of the person's face is drooping or feels numb, ask them to smile. If their smile is uneven or crooked, it could be a sign of a stroke.
Arm weakness or numbness is another common sign. Ask the person to raise both arms. If they are experiencing a stroke, they will have one-sided weakness, and one arm will drift or sag downward while the other stays higher.
Speech problems are also a classic symptom of a stroke. The person may have slurred speech, garbled speech, or difficulty repeating sentences. They may also have trouble understanding speech or choosing the right words.
It's important to act quickly if you notice any of these signs. Call emergency services immediately and note the time when the symptoms first appeared. The faster a person receives treatment for a stroke, the more likely they are to recover without disability.
In addition to FAST, there are other warning signs and symptoms of a stroke. These include:
- Weakness or numbness on one side of the body
- Blurred vision or loss of sight in one or both eyes
- Confusion and memory loss
- Dizziness or loss of balance
- Severe headache
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Behavioural changes, such as anger and aggression, can occur after a stroke
The way we behave is influenced by the way we feel, and a stroke is a sudden and shocking event that can evoke a range of emotions. Additionally, the parts of the brain responsible for cognition – understanding, organising, and storing information – may be damaged by a stroke, further contributing to behavioural changes.
Frustration at not being able to perform tasks or physical fatigue can lead to irritability and anger, which may manifest as aggression. This aggressive behaviour can put the person and those around them at risk, so it is crucial to learn how to manage it effectively. Support from a general practitioner or specialist may be beneficial in these cases.
In some cases, people may exhibit inappropriate behaviour after a stroke. This can include standing too close to others, interrupting conversations, or making impulsive comments or purchases. Loss of inhibitions may also lead to an increase in self-centred behaviour and changes in sexual behaviour.
While some behavioural changes after a stroke may be long-term, it is important to note that the person is still the same person underneath. Seeking help from a counsellor, therapist, or support groups can aid in managing these behavioural changes and their impact on the individual's life.
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Frequently asked questions
The acronym BE FAST is a helpful way to remember the signs of a stroke:
- Balance problems
- Eyesight issues
- Face drooping
- Arm weakness
- Speech difficulty
- Terrible headache
Call 911 immediately. Do not drive yourself to the hospital and don't ask someone else to drive you.
Yes, a stroke can lead to changes in behaviour due to damage to the brain or emotional problems. Anger, aggression, apathy, and inappropriate behaviour are common after a stroke.