Question

what is blood pressure and how does it vary​

Answer 1

Explanation:

Blood pressure -

Pressure exerted by blood on the walls of the vessels.

Answer 2

Answer:

hi mate here is your answer,

Your blood pressure is a reading of the force with which blood is passing through your circulatory system. Blood pressure changes naturally many times a day. Most changes are normal and predictable. When these spikes and valleys in your blood pressure occur, you may not experience unusual signs or symptoms.,

Blood pressure is normally lower at night while you're sleeping. Your blood pressure starts to rise a few hours before you wake up. Your blood pressure continues to rise during the day, usually peaking in the middle of the afternoon. Then in the late afternoon and evening, your blood pressure begins dropping again.

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