why do my eyes water when i yawn

Eyes water when yawning mainly because the facial muscles around the eyes contract and put pressure on the tear-producing glands (lacrimal glands), causing them to release tears. Additionally, yawning can disrupt tear drainage by affecting the tear ducts near these muscles, leading to tears pooling in the eyes. This watering can also be a reflexive response triggered by the stretching and muscle movements during a yawn. Some theories suggest tearing may also help with cooling the brain. Dry eye syndrome, allergies, and environmental factors like dry weather or irritants can make this effect more noticeable for some people. Overall, watery eyes during yawning are a normal response to muscle movements and tear gland stimulation near the eyes.