Laughter is a complex physiological response involving multiple systems in the body. It can indicate both joy and potential neurological issues. Laughter strengthens social bonds, often occurring more in groups. Theories like incongruity and relief explain why we laugh, highlighting surprise and stress relief. Superiority laughter can bond groups in an 'us vs. them' way. Laughter offers health benefits, reducing stress hormones and boosting the immune system.

What physiological systems are involved in the act of laughing?

• Only the facial muscles

• The respiratory system and tear ducts

• The brain's limbic system and respiratory system

• Only the brain's limbic system

Which theory suggests that laughter is triggered by unexpected events?

• Incongruity theory

• Social bonding theory

• Relief theory

• Superiority theory

How does laughter help in stressful situations according to the relief theory?

• By isolating individuals

• By making people feel superior

• By increasing stress hormones

• By providing a mental break

What does the superiority theory of laughter imply?

• Laughter is a sign of weakness

• Laughter is a sign of intelligence

• People laugh to feel superior to others

• Laughter is always a positive social bond

Which of the following is a benefit of laughter?

• Increases fight-or-flight response

• Increases blood pressure

• Decreases immune response

• Reduces stress hormones