The brain requires a regular supply of blood in order to function properly. Inadequate flow of blood, which can be caused by a stroke or other events, is devastating to the brain.

A stroke is defined as the sudden onset of neurological symptoms that result from a disruption in the flow of blood to part of the brain. If a stroke occurs while sleeping, the presence of symptoms after awakening would constitute the signs of a stroke.

A transient ischemic attack offers a warning, according to the American Heart Association. Symptoms resembling a stroke occur during such an attack, but subside. More than half of those who suffer a TIA will have a stroke, typically within a year.

Epileptic seizures have three phases. The preictal phase is the time leading up to the seizure. The ictal phase is the seizure itself. The postictal phase is the period after the seizure. The postictal phase may last from seconds to days, depending on the type of seizure.

A stroke occurs when the blood supply is cut off from all or part of your brain. This can occur as a result of a bursting blood vessel in your brain or a blood clot or other mass in your circulatory that cuts off the blood supply to your brain.

A mini stroke, also known as a transient ischemic attack or a TIA, occurs when the blood flow to the brain is blocked temporarily. It often causes symptoms that mimic those of a stroke; however, according MayoClinic.com, these symptoms completely resolve between two and 24 hours.

The basal ganglia tissue is composed of the caudate nucleus, putamen, and globus pallidus. This area of the brain has a blood supply that can easily be blocked or suffer damage. If blood supply to the any part of the brain is interrupted, the patient suffers from a stroke.

Strokes attack portions of the brain regulating fine motor skills. This often means temporary loss of arm, hand or finger function on one side of the body. But if you suffer a stroke, a drooping mouth and loss of chewing, speaking and swallowing ability also are common symptoms.

Twelve- and 20-gauge shotguns are popular choices among hunters and sport shooters alike. Both gauges are effective at hunting birds and small game, and both feature prominently in competitions such as trap shooting and sporting clays.

A stroke is an interruption of the blood supply to your brain that results in the death of brain cells. You may experience symptoms like difficulty walking and speaking, numbness on one side of your body, headache and blurred vision.

Sex hormones, such as estrogen and progesterone, control the reproductive organs and responses. Women entering menopause, the period when the ovaries discontinue releasing eggs and produce lower levels of hormones, may benefit from the temporary use of hormone replacement therapy, or HRT.

In the U.S. alone, 795,000 people suffer from the consequences of a stroke each year, according to the American Heart Association. A stroke is a brief blockage of the blood stream to a particular brain region or a brain hemorrhage.