It is the number two cause of death world-wide
and may soon become the leading cause of death worldwide.
Risk factors for stroke include advanced age, hypertension (high blood pressure), previous stroke or transient ischemic attack (TIA), diabetes, high cholesterol, cigarette smoking, atrial fibrillation, the contraceptive pill, migraine with aura, and thrombophilia (a tendency to thrombosis), patent foramen ovale and several rarer disorders.