People with high blood pressure may be twice as likely to develop a brain tumour, according to the Daily Mail. The newspaper said a new study had found an association between the two factors, although crucially it could not show that high blood pressure actually caused the tumour to develop.
The research followed more than half a million Norwegian, Swedish and Austrian people for an average of about 10 years, looking at how several factors related to their risk of developing a brain tumour. After dividing people into five bands according to their blood pressure, the researchers found that people with the highest 20% of blood pressure readings were between 45% and 84% more likely to have a brain tumour. However, they found that having high blood pressure while the heart is at rest was only associated with an 18% risk increase once adjustments were made to account for other factors, such as age, gender and smoking status. After these adjustments, there was no increased risk for people who had higher systolic blood pressure (pressure while the heart contracts and pumps blood).