Search results
Results from the WOW.Com Content Network
Brain ischemia has been linked to a variety of diseases or abnormalities. Individuals with sickle cell anemia, compressed blood vessels, ventricular tachycardia, plaque buildup in the arteries, blood clots, extremely low blood pressure as a result of heart attack, and congenital heart defects have a higher predisposition to brain ischemia in comparison to the average population.
Brain ischemia is insufficient blood flow to the brain, and can be acute or chronic. Acute ischemic stroke is a neurological emergency typically caused by a blood clot blocking blood flow in a vessel in the brain. [15] Chronic ischemia of the brain may result in a form of dementia called vascular dementia. [16]
Blood flow may increase up to twice the normal flow but no more. If the increased blood flow is sufficient to supply the brain's oxygen needs then no symptoms will result. [6] However, if blood flow cannot be increased or if doubled blood flow does not correct the problem, symptoms of cerebral hypoxia will begin to appear.
An estimated 14 percent of U.S. adults are lacking this mineral responsible for making red blood ... Impaired brain function. ... absorbing iron and therefore not be getting enough, adds Dr. Akpan ...
According to the National Heart, Lung, and Blood Institute (NIH), a stroke takes place when blood flow to the brain becomes blocked, ... not getting enough physical activity, and drinking too much ...
Cerebral blood flow (CBF) is the blood supply to the brain in a given period of time. [8] In an adult, CBF is typically 750 millilitres per minute or 15.8 ± 5.7% of the cardiac output . [ 9 ] This equates to an average perfusion of 50 to 54 millilitres of blood per 100 grams of brain tissue per minute.
This symptom arises because your body relies on iron to make hemoglobin, a protein in red blood cells that enables them to carry oxygen around the body. When iron levels are low, the body can ...
Chest pain and discomfort may occur during a heart attack because the heart is not getting enough oxygen-rich blood. Knowing this is reason enough to seek out care. ... your brain, your nervous ...