Why Do We Cry? The Truth Behind Our Tears

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Some people cry a lot. Some people hardly ever cry. Sometimes it’s physical pain that drives us to tears, but other times it’s another kind of pain. Furthermore, different cultures have different views on crying. This is a crash course on crying.

Types of Tears

Tears are extremely useful. They help us see clearly and wash debris from our eyes. They’re also expressive, as they help us communicate a variety of feelings.

Our eyes cry three different types of tears: basal, reflexive and emotional. Each has a different job and chemical composition.

1. Basal Tears

Basal tears have the basic function of keeping our eyes lubricated and protected at all times. They flow continuously from the lacrimal glands, the tiny almond-shaped holes on the inside corner of the eye. Blinking spreads them evenly over the surface of the eyes. They contain oil, mucus, water, salt and enzymes that help fight infection.

2. Reflex or Irritant Tears

Reflex tears, also known as irritant tears, are released as a response to irritants. They flush out smoke, dust particles and anything else that can irritate the eyes. Yawning, vomiting and coughing also stimulate irritant tears. Reflex tears contain more water and higher levels of antibodies than basal tears.

3. Emotional or Psychic Tears

Emotional tears, or psychic tears, are triggered by emotions such as sadness, grief, rage and joy as well as physical pain. They communicate our emotions and trigger empathy and compassion. People often wish they could avoid these tears because emotional crying makes them feel vulnerable.

Most Common Reasons for Emotional Crying

  • To process our emotions
  • To sympathize with others
  • To get our needs met
  • To get help
  • To relieve pain
  • To form and strengthen social bonds

Emotional crying is controlled by the hypothalamus in the brain’s limbic system, which is involved in generating basic emotions such as sadness, fear and anger. When a person feels emotion, the hypothalamus springs into action to stimulate the lacrimal glands in the eyes to produce tears.

Emotional tears differ chemically from basal and reflex tears. Because emotional crying releases stress hormones, natural pain killers and feel-good hormones such as endorphins and oxytocin, researchers believe that it offers health benefits. That’s why a good cry can make you feel better.

So next time you hesitate to cry, remember that crying does the body good.

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