Prostate cancer is the second most commonly diagnosed cancer among men and the second most common cause of death from cancer in men, yet many prostate cancers are not fatal and some autopsy series have demonstrated up to 50% or more silent prostate cancers in men over the age of 70 years.

It is estimated that more than 56,000 strokes will be experienced by Australians this year (new and recurrent) and that half of Australians are living with the effects of a stroke which remains the third leading cause of death in Australia and kills more women than breast cancer and more men than prostate cancer. As more than 80% of strokes may be prevented and four in 10 stroke survivors have a recurrent stroke within a decade it is very important we understand the aetiology of strokes and how we may intervene effectively to reduce incidence and morbidity.