High blood pressure is the biggest cause of stroke, says study

A new study from an international team of researchers has identified the top causes of stroke worldwide - and deemed most instances as being preventable.

According to the study, which analysed nearly 27,000 people from every continent, hypertension (high blood pressure) remains the top trigger, at just under 48% risk.

See also: How to prevent a stroke

See also: How to spot a mini-stroke

Physical inactivity was estimated at nearly 36% and poor diet at roughly 23%.

Obesity and smoking also came in high, at about 18.5% and 12.5%, respectively.

Other notable factors included cardiac causes, diabetes, alcohol consumption, and stress.

While there were variations by region, combined, the top factors accounted for 90% of all stroke risks.

The team says its study will aid in establishing prevention guidelines and strategies.