This article looks at 3 conditions that your GP can diagnose and treat. Read on to find out more! 1) High Blood Pressure High blood pressure may increase the chance you will experience a stroke, heart attack and heart failure if it goes untreated. While the exact cause isn't known, some factors increase your chances of developing high blood pressure: Having a parent with high blood pressure A high-salt diet A family history of heart disease Being overweight and smoking If you have several risk factors, your doctor may ask you to monitor your blood pressure at home.