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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]
How many of these brain busters can you solve? The post 25 Printable Brain Teasers You Can Print for Free appeared first on Reader's Digest.
Binge drinking is believed to increase impulsivity due to altered functioning of prefrontal–subcortical and orbitofrontal circuits. Binge drinking in alcoholics who have undergone repeated detoxification is associated with an inability to interpret facial expressions properly; this is believed to be due to kindling of the amygdala with resultant distortion of neurotransmission.
Neuroscientists believe that drug addicts’ behavior is a direct correlation to some physiological change in their brain, caused by using drugs. This view believes there is a bodily function in the brain causing the addiction. This is brought on by a change in the brain caused by brain damage or adaptation from chronic drug use. [1] [2]
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 post 20 Printable Sudoku Puzzles to Test Your Smarts appeared first on Reader's Digest. These printable sudoku puzzles are four different levels of difficulty. You want to start with the easy ...
Many prescription and legal nonprescription substances can also cause withdrawal symptoms when individuals stop consuming them, even if they were taken as directed by a physician. The route of administration, whether intravenous, intramuscular, oral, or otherwise can also play a role in determining the severity of withdrawal symptoms.
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 ...