Five important health numbers you should know - but most adults don'tA doctor has shared five important health markers that everybody should knowView Image The study showed most people don't know what is 'normal' for them (Image: Getty Images)A doctor has revealed five crucial health facts that everyone should be aware of - but most people don't know. ‌"Knowing your key health markers can help you take control of your health and wellbeing," Dr. Powles said. It found that merely 35% understand what constitutes a normal blood pressure reading for them, only 7% are familiar with their heart health score, and just 12% recognise their typical maximum heart rate. Heart healthPoor heart health can cause both short- and long-term issues. Lifestyle factors are key, but heart rhythm screenings and a QRisk3 heart health score assessment can detect irregular heartbeats and estimate heart disease risk.