People with sickle-cell anemia are at risk for stroke at a young age. Other General Risk Factors Timing. Like heart attack and sudden cardiac death, stroke appears to be more common in the morning hours, perhaps due to a temporary rise in blood pressure at that time. Various studies point to a higher risk of stroke on weekends, Mondays, and holidays. The risk for hemorrhagic stroke may also be higher in the winter, particularly in older hypertensive people.
Shorter people have a higher risk than taller individuals.