Why do we often see ‘sparks’ and static, when we get up too quickly?

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Hi, couldn’t find a post that explains this a bit deeper. I know I’ts often because of low blood pressure, but what exactly causes these weird sparks and static. I also found out there can be different sparks and static. What determines what kind of these weird ‘halucinations’ we’ll have after getting up?

In: Biology

2 Answers

Anonymous 0 Comments

When you get up from a sitting position the blood rushes to where it’s needed most in that moment, the legs. Which causes it to go away from the head.

This is also caused by low salt and iron levels.

Anonymous 0 Comments

Orthostatic hypotension — also called postural hypotension — is a form of low blood pressure that happens when you stand up from sitting or lying down. Orthostatic hypotension can make you feel dizzy or lightheaded, and maybe even faint.
Orthostatic hypotension is often mild, lasting a few seconds to a few minutes after standing. However, long-lasting orthostatic hypotension can be a sign of more-serious problems, so talk to your doctor if you frequently feel lightheaded when standing up. It’s even more urgent to see a doctor if you lose consciousness, even momentarily.

When you stand up, gravity causes blood to pool in your legs. This decreases blood pressure because there’s less blood circulating back to your heart to pump.
Normally, special cells (baroreceptors) near your heart and neck arteries sense this lower blood pressure and send signals to centers in your brain that in turn signal your heart to beat faster and pump more blood, which stabilizes blood pressure. In addition, these cells cause blood vessels to narrow, which increases resistance to blood flow and increases blood pressure.
Orthostatic or postural hypotension occurs when something interrupts the body’s natural process of counteracting low blood pressure.
It can be caused by many different conditions, including:

Dehydration. Fever, vomiting, not drinking enough fluids, severe diarrhea and strenuous exercise with excessive sweating can all lead to dehydration. When you become dehydrated, your body loses blood volume. Mild dehydration can cause symptoms of orthostatic hypotension, such as weakness, dizziness and fatigue.
Heart problems. Some heart conditions that can lead to low blood pressure include extremely low heart rate (bradycardia), heart valve problems, heart attack and heart failure. These conditions may cause orthostatic hypotension because they prevent your body from being able to respond rapidly enough to pump more blood when needed, such as when standing up.
Endocrine problems. Thyroid conditions, adrenal insufficiency (Addison’s disease), low blood sugar (hypoglycemia) and, in some cases, diabetes can trigger low blood pressure. Diabetes can also damage the nerves that help send signals regulating blood pressure.
Nervous system disorders. Some nervous system disorders, such as Parkinson’s disease, multiple system atrophy, Lewy body dementia, pure autonomic failure and amyloidosis, can disrupt your body’s normal blood pressure regulation system.
After eating meals. Some people experience low blood pressure after eating meals (postprandial hypotension). This condition is more common in older adults.
I hope you’re just ok and there’s nothing to worry about, but if it persists you may go for medical opinion.