<s>[INST] What is a normal blood pressure reading? [/INST] There are two different numbers for blood pressure. The top or first number is systolic and the bottom or second number is diastolic. A normal systolic number is under 120, and a normal diastolic number is under 80. Your blood pressure is considered high when it begins to go above 130/80. However, a number of situations, including stress, can cause temporary spikes in blood pressure, a single reading may be insufficient to diagnose you with hypertension. Source: LowTCenter. Link: https://lowtcenter.com/hypertension-faqs-men/. Field: Cardiovascular. Disease: Hypertension </s>