Why is yawning contagious?

Replies

• 

  Anoop Kumar

  ☕😴
• 

  Kaustubh Katdare

  Yes it is.
• 

  Ramani Aswath

  #-Link-Snipped-#
  
  There were some reports about increased levels of carbon dioxide in crowded rooms being a cause of collective yawning (in class rooms and seminars!)
• 

  Ankita Katdare

  bioramani

  #-Link-Snipped-#
  
  There were some reports about increased levels of carbon dioxide in crowded rooms being a cause of collective yawning (in class rooms and seminars!)

  So, you mean if there are only 3-4 people in open air, contagious yawning won't occur?
• 

  Ramani Aswath

  AbraKaDabra

  So, you mean if there are only 3-4 people in open air, contagious yawning won't occur?

  Not quite. The two may be different phenomena.
• 

  Sahithi Pallavi

  Yes Insufficient oxygen levels causes yawning!
• 

  Manashree Thokal

  Lol. Interesting.