Blood Circulation Blockage.

Blood Circulation Blockage. The mind gets about 25 % of the body’s oxygen, yet it cannot hold it. Brain cells need a continuous supply of oxygen to remain healthy and function properly. Therefore, blood needs to be provided regularly to the brain through 2 main arterial devices:
The carotid arteries come up through either side of the front of the neck. (To feel the pulse of a carotid artery, place your fingertips gently against either side of your neck, right under the jaw.)
The basilar artery forms at the base of our skull, starting from the vertebral arteries which run up along the spine, join, and come up through the rear of the neck.

The artery that sits at the base of the brain is the joining area of several arteries at the bottom (inferior) side of the brain. At the artery that sits at the base of the brain is the internal carotid arteries branch into smaller arteries that supply oxygenated blood to over 80% of the cerebrum.
A reduction of, or disruption in, blood flow to the brain is the cause of a stroke. Blockage for even a short period of time can be disastrous and cause brain damage or even death.
Ischemic (caused by a blockage in an artery)
Hemorrhagic (caused by a tear in the artery’s wall that produces bleeding into or around the brain)
The consequences of a stroke, the type of functions affected, and the severity, depending on where in the brain it has occurred and the extent of the damage. Ischemic strokes are by far the more common type, causing over 80% of all strokes. Ischemia means the deficiency of oxygen in vital tissues. Ischemic strokes are caused by blood clots that are usually one of three types:

Thrombotic or Large-Artery Stroke and Atherosclerosis. The thrombotic stroke accounts for about 60% of all strokes. It usually occurs when an artery to the brain is blocked by a thrombus (blood clot) that forms as the result of atherosclerosis (commonly known as hardening of the arteries). These strokes are also sometimes referred to as large-artery strokes. The process leading to thrombotic stroke is complex and occurs over time:
The arterial walls slowly thicken, harden, and narrow until blood flow is reduced, a condition known as stenosis.

As these processes continue, blood flow slows. In addition, other events contribute to the coming stroke: The arteries become calcified, lose elasticity, and become susceptible to tearing. In this event, the thrombus (blood clot) forms. The blood clot then blocks the already narrowed artery and shuts off oxygen to part of the brain. A stroke occurs.

Embolic Strokes and Atrial Fibrillation. An embolic stroke is usually caused by a dislodged blood clot that has traveled through the blood vessels (an embolus ) until it becomes wedged in an artery. Embolic strokes may be due to various conditions:
In about 15% of embolic strokes, the blood clots originally form as a result of a rhythm disorder known as atrial fibrillation. Emboli can originate from blood clots that form at the site of artificial heart valves. Patients with heart valve disorders such as mitral stenosis are at increased risk for clots when they also have atrial fibrillation. Emboli can also occur after a heart attack or in association with heart failure.
Rarely, emboli are formed from fat particles, tumor cells, or air bubbles that travel through the bloodstream.

Lacunar Strokes. Lacunar infarcts are a series of very tiny, ischemic strokes, which cause clumsiness, weakness, and emotional variability. They make up the majority of silent brain infarctions and are probably a result of chronic high blood pressure they are actually a subtype of thrombotic stroke. They can also sometimes serve as warning signs for a major stroke.
Silent Brain Infarctions. Many elderly people have silent brain infarctions, small strokes that cause no apparent symptoms. They are detected in up to half of elderly patients who undergo imaging tests for problems other than stroke. The presence of silent infarctions indicates an increased risk for future stroke, and are often contributors to mental impairment in the elderly. Smokers and people with hypertension are at particular risk.

Transient Ischemic Attacks (TIAs)
A transient ischemic attack (TIA) is an episode in which a person has stroke-like symptoms for less than 24 hours, usually less than 1-2 hours. Transient ischemic attacks (TIAs) are caused by tiny emboli (clots often formed of pieces of calcium and fatty plaque) that lodge in an artery to the brain. They typically break up quickly and dissolve but they do temporarily block the supply of blood to the brain.
A TIA is often considered a warning sign that a true stroke may happen in the future if something is not done to prevent it. TIA should be taken very seriously and treated as aggressively as a stroke.
Hemorrhagic Stroke

About 20% of strokes occur from hemorrhage (sudden bleeding) into or around the brain. While hemorrhagic strokes are less common than ischemic strokes, they tend to be more deadly.
Hemorrhagic strokes are categorized by how and where they occur.
Parenchymal, or intracerebral, hemorrhagic strokes. These strokes occur from bleeding within the brain tissue. They are most often the result of high blood pressure exerting excessive pressure on arterial walls already damaged by atherosclerosis. Heart attack patients who have been given drugs to break up blood clots or blood-thinning drugs have a slightly elevated risk of this type of stroke.
Subarachnoid hemorrhagic strokes. This kind of stroke occurs when a blood vessel on the surface of the brain bursts, leaking blood into the subarachnoid space, an area between the brain and the skull. They are usually caused by the rupture of an aneurysm, a bulge in a blood vessel, which creates a weakening in the artery wall.
Arteriovenous malformation (AVM) is an abnormal connection between arteries and veins. If it occurs in the brain and ruptures, it can also cause a hemorrhagic stroke.

People at risk and partners or caretakers of people at risk for stroke should be aware of its typical symptoms. The stroke victim should get to the hospital as soon as possible after these warning signs appear. It is particularly important for people with migraines or frequent severe headaches to understand how to distinguish between their usual headaches and symptoms of stroke.
Time is of the essence in treating stroke. Studies show that patients receive faster treatment for stroke if they arrive by ambulance rather than coming to the emergency room on their own People should immediately call 911 for emergency assistance if they experience any of warning signs of stroke:
Sudden numbness or weakness of the face, arm or leg, especially on one side of the body
Sudden confusion, trouble speaking or understanding
Sudden trouble seeing in one or both eyes

Sudden trouble walking, dizziness, loss of balance or coordination
Sudden, severe headache with no known cause
An easy way to remember the signs of stroke, and what to do, is by the acronym “F.A.S.T.” If you think you or someone else is having a stroke, the National Stroke Association’s F.A.S.T. test advises:
(F)ACE. Ask the person to smile. Check to see if one side of the face droops.
(A)RMS. Ask the person to raise both arms. See if one arm drifts downward.
(S)PEECH. Ask the person to repeat a simple sentence. Check to see if words are slurred and if the sentence is repeated correctly.

(T)IME. If a person shows any of these symptoms, time is essential. It is important to get to the hospital as quickly as possible. Call 9-1-1. Act FAST.
Symptoms of TIAs and Early Ischemic Stroke
The symptoms of a transient ischemic attack (TIA) and early ischemic stroke are similar. In the case of a TIA, however, the symptoms resolve within 24 hours. Symptoms depend on where the injury in the brain occurs. The origin of the stroke is usually either the carotid or basilar arteries.

Bible verses for today’s meditation and inspiration: Matthew E. McLaren

Ephesians 4:26-27 ESV
Be angry and do not sin; do not let the sun go down on your anger, and give no opportunity to the devil.

James 1:19-20 ESV
Know this, my beloved brothers: let every person be quick to hear, slow to speak, slow to anger; for the anger of man does not produce the righteousness of God.

Proverbs 29:11 ESV
A fool gives full vent to his spirit, but a wise man quietly holds it back.

Proverbs 19:11 ESV
Good sense makes one slow to anger, and it is his glory to overlook an offense.

James 1:20 ESV
For the anger of man does not produce the righteousness of God.

Proverbs 15:1 ESV
A soft answer turns away wrath, but a harsh word stirs up anger.

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