The feeling of lightheadedness is often a blood pressure response. If you stand up too quickly, your heart temporarily needs to pump harder to manage blood flow against gravity, and in that timespan between standing up and increasing blood pressure, the cells and sensors in your head/ear lose oxygen and bloodflow. Without oxygen, your cells don’t work and you lose the sensation of hearing etc. As blood pressure is restored, your hearing comes back, and the ringing stops.
The feeling of lightheadedness is often a blood pressure response. If you stand up too quickly, your heart temporarily needs to pump harder to manage blood flow against gravity, and in that timespan between standing up and increasing blood pressure, the cells and sensors in your head/ear lose oxygen and bloodflow. Without oxygen, your cells don’t work and you lose the sensation of hearing etc. As blood pressure is restored, your hearing comes back, and the ringing stops.
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