Why Do We Sigh?

The video explores the biological and psychological aspects of sighing. It explains that sighing is a universal human experience with both involuntary and emotional triggers. Biologically, sighing helps maintain lung function by expanding alveoli. Psychologically, it is linked to emotions like stress and relief. Studies show that people often sigh in response to stress and feel relieved afterward. However, interpretations of sighs can vary, often being seen as negative. The video concludes by encouraging further exploration of how our brains interpret the world.

What is the primary biological function of a sigh?

• To expand the alveoli in the lungs

• To express sadness

• To communicate with others

• To signal boredom

How often do humans typically need to sigh to maintain lung function?

• Every 30 minutes

• Every 5 minutes

• Once an hour

• Only when stressed

According to the 2009 study, what emotion is most commonly associated with sighing?

• Anger

• Confusion

• Relief

• Excitement

Why might sighing be considered contagious?

• It signals a sense of safety to others

• It is a sign of boredom

• It is a way to express happiness

• It indicates a need for attention

In the 2008 study, how did people generally interpret a sigh when imagining themselves in a story?

• As a signal of danger

• As a sign of happiness

• As a sign of intense sadness

• With varied responses like frustration or tiredness