<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
What causes teary eyes?
<|assistant|>
In most cases, teary eyes are caused by a combination of environmental factors, allergies, or emotional issues. Allergies are often the most common cause, as your eyes can react to allergens like pollen, dust, and animal dander. Environmental factors like high humidity, dry air, and exposure to extreme temperatures can also lead to increased tearing. Sometimes, emotional factors like laughing, crying, or feeling nervous can also trigger the release of tears. In rare cases, tearing can be a sign of an underlying health issue, so it’s important to have any persistent eye problems checked by an eye care professional.