Although a stroke is usually perceived as a sudden event, in many cases the body sends warning signals weeks beforehand. Recognizing these symptoms, acting promptly, and adopting preventative measures can make the difference between a favorable recovery and serious consequences.
What is a stroke?
A stroke is a sudden alteration of blood flow in the brain. It can be caused by a blockage (ischemic) or by the rupture of a blood vessel (hemorrhagic). In both cases, nerve cells die rapidly when deprived of oxygen, creating a risk of permanent consequences or even death.
There is also a transient ischemic attack (TIA), which is an early warning: symptoms disappear, but it warns of an imminent risk of a major episode.
10 early warning signs
These symptoms can appear up to a month before a stroke. If you experience one or more of these symptoms, seek immediate medical attention:
Sudden fatigue with no apparent cause.
Difficulty speaking: pronouncing words, finding words, or understanding sentences.
Vision problems: blurred vision, tunnel vision, or the appearance of dark spots.
Unusual and severe headaches, different from usual.
Weakness or tingling on one side of the body (face, arm, or leg).
Sudden dizziness or loss of balance.
Strange sensations such as nonexistent noises or smells.
Facial asymmetry, such as one side of the mouth drooping.
Sudden increase in blood pressure.
Confusion or momentary memory loss.
