Research shows that wearing a tie can increase your risk of glaucoma, a condition that can lead to irreversible blindness. In a small trial, researchers found that wearing a tight necktie for just 3 minutes can increase pressure within the eyes enough to raise a person's risk of glaucoma. The tighter you tie it, the more a tie constricts the jugular vein, increasing the pressure in the blood vessels leading to the eyes.
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