A review of 1.25 million medical records of 30 year olds and older from a primary care practice for 5 years in England and looked at the different effects of systolic and diastolic blood pressure when it came to intracerebral bleeds, angina, abdominal aortic aneurysm, and renal disease. They published their results in the May issue of the journal The Lancet.
It was discovered that in a 30 year old with hypertension the lifetime risk for developing cerebrovascular disease was 63% compared to 46% in those with normal blood pressure. They also found that those with hypertension developed cardiovascular disease about 5 years sooner.