Medical Questions » Blood Pressure

Question 1:	Why do doctors keep worrying about my blood pressure. Is it really that important to keep it low?
Question 2:	What is the correct figure for blood pressure? Mine is 140/90 and my doctor keeps checking it every time I see him. He says it is alright, but this constant checking worries me.
Question 3:	I am a very fit, healthy and normal weight 32 year old, but my doctor wants to start me on treatment for high blood pressure. Why?
Question 4:	The nurse at work took my blood pressure, and said I should see a doctor. Is a blood pressure of 190/115 normal?
Question 5:	My blood pressure varies a lot. Some doctors wrap the blood pressure cuff firmly around my arm, and others do it loosely. Does it make any difference?
Question 6:	You constantly hear about high blood pressure, but what about low blood pressure. What causes this?