A recent study found wearing a necktie could reduce blood flow to the brain.
Researchers in Germany compared MRI results of a group of men wearing a necktie to those not wearing one.
They found that the ties squeezed arteries in the neck, resulting in 7 percent decreased blood flow to the brain.
Researchers said that could be dangerous for those with high blood pressure.
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Neckties could restrict blood flow to brain, study says