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Why do we rub our eyes when we are tired

After a long day at school or in the office, our eyes can begin to feel sore and dry. By rubbing our tired eyes we stimulate the lacrimal gland above the eyeball. which then producers extra fluid to re hydrate the eye. However, rubbing your eyes can actually make you feel more tired.

By putting pressure on the eye, the vagus nerve is stimulated, which can reduce your heart rate, making you feel relaxed and ready for a snooze. Be warned, too much pressure and chronic rubbing can cause a range of health issues, including causing infection of scratching your eye's cornea.


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