Men are generally at more risk for developing stroke and the chance will increase by aging for both genders. Anybody with previous stroke or TIA (transient ischaemic attack or mini-stroke) is tremendously at higher risk for another stroke. We cannot change the above and the damage which has already occurred by stroke, but we can reduce the risk significantly by altering the modifiable risk factors.
Smoking, drinking too much alcohol, low activity and diets rich in fat and salt are the lifestyle factors could increase the risk.
Underling medical conditions i.e., diabetes, high blood pressure, high blood cholesterol levels and hyper coagulopathy (the blood is more sticky than normal so clots form in the vessels) are easily controlled otherwise they could add to the probability of stroke in the future.
Narrowing of blood vessels in the neck, structural heart diseases, irregular heartbeats (i.e., Atrial Fibrillation) and peripheral artery diseases are the other medical issues which push the risk higher.