Why people yawn when they are sleepy? Are there any biological reasons behind yawning? 628 viewsJanuary 1, 2024 Question98.79K May 24, 2023 0 Comments Why people yawn when they are sleepy? Are there any biological reasons behind yawning? In: 299 26 Answers ActiveNewestOldest Anonymous Posted May 24, 2023 0 Comments Yawning tells your body that it’s ok to relax. It widens your rib cage and sends a signal to your brain that it got a full breath. Wide jaw and rapid exhalation of breath calms the nervous system. You are viewing 1 out of 26 answers, click here to view all answers. Register or Login
Latest Answers