tears of grief and of joy

One day Rose-Lynn Fisher wondered if her tears of grief would look different from her tears of joy, so she began to explore them up close under a microscope.

She studied 100 different tears and found that basal tears (the ones that our body produces to lubricate our eyes) are drastically different from the tears that happen when we are chopping onions. The tears that come about from hard laughter aren’t even close to the tears of sorrow. Like a drop of ocean water each tiny tear drop carries a microcosm of human experience.

Isn't it amaizing and wonderful?