Both types can be serious medical emergencies, although their causes and treatments differ.
Why Are Young People Sometimes Affected?
Several factors can increase stroke risk in younger adults.
These include:
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Congenital or acquired heart conditions.
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Certain blood-clotting disorders.
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High blood pressure.
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Diabetes and other metabolic conditions.
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Smoking and some forms of drug use.
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Certain vascular abnormalities, including aneurysms and arterial dissections.
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Some inflammatory or autoimmune disorders.
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Pregnancy and the postpartum period.
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Certain medications or underlying conditions that increase clotting risk.
In some young patients, a clear cause is not immediately identified. Doctors may need to conduct additional testing to understand what happened.
A cervical artery dissection, for example, involves a tear in the wall of an artery in the neck. It can occur spontaneously or after an injury and may lead to a clot that causes a stroke.
Some strokes are also associated with congenital heart abnormalities or uncommon blood disorders.
Having a stroke at a young age does not automatically mean that a person had an unhealthy lifestyle. Some risk factors are inherited, unexpected, or difficult to identify before an event occurs.
This is why sudden neurological symptoms deserve attention regardless of age, fitness level, or medical history.
2. Warning Sign Number One: A Sudden, Extremely Severe Headache
A headache is common, and most headaches are not caused by a stroke. However, a sudden, unusually severe headache can be a warning sign of a serious neurological emergency.
One particularly concerning pattern is a headache that reaches maximum intensity within seconds or approximately a minute. This is often described as a thunderclap headache.
People may describe it as the worst headache they have ever experienced.
Such a headache can occur with a subarachnoid hemorrhage, a type of bleeding around the brain. Other serious conditions can produce a similar presentation.
How Is This Different From an Ordinary Headache?
Many tension headaches develop gradually and may feel like pressure or tightness around the head.
Migraines can cause severe pain, nausea, sensitivity to light, and sensitivity to sound. Some migraines also produce visual disturbances or other neurological symptoms.
However, a sudden headache that is dramatically different from a person's usual headaches must not automatically be attributed to migraine or stress.
Emergency evaluation is especially important when the pain begins abruptly, is unusually intense, or occurs with vomiting, neck stiffness, fainting, confusion, weakness, or other neurological changes.
Do not wait to see whether a thunderclap headache improves on its own.
Call your local emergency number or seek emergency medical care immediately.
3. Warning Sign Number Two: Sudden Weakness or Numbness
One of the best-known signs of stroke is sudden weakness or numbness affecting the face, arm, or leg, particularly on one side of the body.
A person may suddenly find that one arm feels unusually heavy or that one leg does not respond normally.
They may struggle to hold a cup, lift an object, stand steadily, or walk without assistance.
Facial weakness can also occur. One side of the mouth may droop, or the person's smile may appear uneven.
Why Does This Happen?
Different areas of the brain control different bodily functions.
When blood flow to a particular region is interrupted, the functions controlled by that area may be affected.
A stroke involving pathways responsible for movement can therefore cause weakness or loss of coordination on one side of the body.
The exact symptoms depend on the location and extent of the brain injury.
What Should You Do?
Do not ask the person to exercise the affected limb to see whether it improves.
Instead, recognize the sudden change and seek emergency medical assistance.
Even if the weakness or numbness disappears after a few minutes, urgent evaluation is still necessary.
Temporary neurological symptoms can occur during a transient ischemic attack, or TIA. A TIA may indicate an increased risk of a future stroke and should be treated as a medical emergency.
Never assume that a person is safe simply because they have recovered their normal movement.
4. Warning Sign Number Three: Difficulty Speaking or Understanding Language
A stroke can interfere with the brain regions responsible for language and communication.
A person may suddenly have trouble finding words, producing understandable speech, or understanding what other people are saying.
Their speech may sound slurred, confused, or unusually slow.
In some cases, the person knows what they want to communicate but cannot express it clearly.
In others, they may have difficulty understanding simple instructions or following a conversation.
Why Is This Symptom Important?
Speech difficulties can result from several medical conditions, but sudden onset is particularly concerning.
A stroke may affect the networks responsible for coordinating the muscles used in speech or processing language.
These problems can appear even when the person is awake and appears otherwise alert.
A young adult who suddenly begins speaking incoherently or cannot understand familiar words needs immediate assessment.
Do Not Wait for Additional Symptoms
Stroke symptoms do not always appear together.
A person may have a speech problem without severe headache, obvious facial drooping, or complete paralysis.
One sudden neurological symptom can be enough to justify an emergency response.
Do not delay while waiting for a second symptom to appear.
5. Warning Sign Number Four: Sudden Vision Problems
Sudden changes in vision may indicate a problem involving the eyes, the optic pathways, or the brain.
Stroke can sometimes cause loss of vision in one eye, loss of part of the visual field, double vision, or difficulty coordinating eye movements.
A person may suddenly be unable to see objects on one side or may bump into things because they cannot perceive part of their surroundings.
Some people experience visual symptoms alongside dizziness, difficulty walking, or other neurological changes.