Signs That Might Save a Life From Stroke
55. Sudden Difficulty with Math or Calculations (Acalculia)

A stroke can cause a very specific cognitive deficit where a person suddenly loses the ability to perform simple math or calculations, a condition known as acalculia. A person who was once adept at numbers might suddenly struggle to add single-digit numbers or tell time. This isn't just confusion; it's a profound and abrupt loss of a specific, learned skill. This is a direct sign that a stroke has affected the brain's parietal lobe, the area responsible for processing numerical information and abstract thought, and it warrants immediate medical evaluation.
56. Sudden, Unexplained Limb Tremors

While the list mentions twitching and jerking, a stroke can also cause a very specific, rhythmic, and uncontrollable shaking or tremor in a limb. This is not the muscle weakness associated with paralysis, but a distinct neurological symptom that can be a sign that a stroke is affecting the brain's motor pathways. The tremor may be mild at first, but it can be persistent and unprovoked. If you notice a sudden, unexplained tremor in a person's hand or arm, it's a critical warning sign of a neurological event.
