Why do humans leak from eyes and nose when sad?

Question

Why do we cry, and why does our nose run when we are sad? What’s the explanation behind it?

In: 0

Answer 1

When we cry, our eyes produce tears as a response to an emotional trigger. The tears contain hormones and proteins that are released in response to the emotional stimulus. The tears also contain an enzyme that helps break down the proteins and hormones in the tears. The tears then travel down the tear ducts and into the nose, where they mix with mucus. This mucus is then secreted from the nose, resulting in a runny nose.