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The underlying mechanism involves the nervous system slowing the heart rate and dilating blood vessels, resulting in low blood pressure and thus not enough blood flow to the brain. [2] Diagnosis is based on the symptoms after ruling out other possible causes. [3] Recovery from a reflex syncope episode happens without specific treatment. [2]
A tilt table test (TTT), occasionally called upright tilt testing (UTT), is a medical procedure often used to diagnose dysautonomia or syncope. Patients with symptoms of dizziness or lightheadedness, with or without a loss of consciousness ( fainting ), suspected to be associated with a drop in blood pressure or positional tachycardia are good ...
One line of debate is between two points of view: that of psychological nativism, i.e., the language ability is somehow "hardwired" in the human brain, and usage based theories of language, according to which language emerges through to brain's interaction with environment and activated by general dispositions for social interaction and ...
Syncope and presyncope are common in young athletes. In 1990 the American college basketball player Hank Gathers suddenly collapsed and died during a televised intercollegiate basketball game. [47] He had previously collapsed during a game a few months prior. He was diagnosed with exercise-induced ventricular tachycardia at the time.
The goal of addiction research is to find ways to prevent and reverse the effects of addiction on the brain. Theoretically, if the structural changes in the brain associated with addiction can be blocked, then the negative behaviors associated with the disease should never develop.
Patients with severe opioid addiction are being given brain implants to help reduce their cravings, in the first trial of its kind in the US. Treatment starts with a series of brain scans. Surgery follows with doctors making a small hole in the skull to insert a tiny 1mm electrode in the specific area of the brain that regulates impulses such ...
Keeping a sense of balance requires the brain to process a variety of information received from the eyes, the nervous system, and the inner ears. If the brain is unable to process these signals, such as when the messages are contradictory, or if the sensory systems are improperly functioning, an individual may experience lightheadedness or ...
Hair-grooming syncope (also known as hair-combing syncope) is a form of syncope (a fainting disorder) associated with combing and brushing one's hair.It is most typically seen in children aged five to sixteen.