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00:00 Closing your eyes is an automatic reflex that we all do many times throughout the day without even paying attention to it.
00:07 But have you ever wondered why you are closing your eyes?
00:11 Closing your eyes is essential in maintaining eye health.
00:15 It is essentially used to clean and moisturize the eyes.
00:18 We close our eyes on average 10 to 15 times per minute, even more when the atmosphere is aggressive,
00:24 pollution, smoke, heat.
00:26 In addition, some experiments have shown that closing your eyes acted like pauses in visual concentration.
00:33 On average, each closing your eyes lasts only 0.4 seconds.
00:37 (upbeat music)