Have you noticed that Yawning is contagious?

Yawning - Man Yawns
@saibal06 (2575)
India
November 27, 2006 9:14am CST
In almost all cases when you see some is Yawning, you feel an irresistible urge to do the same and ultimately you end up yawning. That's why it is called that Yawning is contagious. Do you believe it?
2 responses
rajivkumar900
@rajivkumar900 (9860)
• India
29 Nov 06
no i hve not noitce that
rajivkumar900
@rajivkumar900 (9860)
• India
29 Nov 06
no i hve not noitce that