Final answer:
High blood pressure (hypertension) is more clinically relevant due to its association with increased risk of cardiovascular diseases. It is often called the 'silent killer.'
Step-by-step explanation:
The clinical relevance of high blood pressure (hypertension) versus low blood pressure (hypotension) depends on the individual's health conditions. However, in general, high blood pressure is considered more clinically significant due to its association with an increased risk of cardiovascular diseases such as heart attack, stroke, and chronic kidney disease. Hypertension is often referred to as the 'silent killer' because it often does not have symptoms, leading to a delay in diagnosis and treatment.