A healthy adult has a blood pressure around 120/80mmHg and blood pressure consistently around 140/90mmHg is considered high.

High blood pressure occurs when the vessels in your body become too narrow or the amount of blood moving around is too high, both of these factors increase the workload on your heart and can damage the lining of your blood vessels.

Dietary changes that can influence your blood pressure positively include reducing salt and alcohol intake, maintaining a healthy weight.