random fact #11 yawning and cracking your knuckles

Loading...

Sign in or sign up now!
Alert icon
Upgrade to the latest Flash Player for improved playback performance. Upgrade now or more info.
5,078
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Jan 9, 2009

Hey it's me again, with another random fact of the week. This is is it bad to crack your knuckles and why are yawns contagious. email me at 10spicymeatballs@live.com

www.youtube.com/user/BrianL125

Category:

Education

Tags:

License:

Standard YouTube License

  • likes, 12 dislikes

Link to this comment:

Share to:

Top Comments

  • Lol I felt like a petifile watching this

  • you made me yawn.

see all

All Comments (39)

Sign In or Sign Up now to post a comment!
  • OH COME ONNNN!!!...GIVE ME A BREAK!!!

  • this is so fucking gay

  • 11 dislikes WHAT IDIOTS

  • if i hear the word yawn i need to. cracking knuckles? i do it 24/7 and i cant stop.

  • @busmoose this is true. don't listen to kid.

  • @MrSkateholic please how is it bull shit. please explain

  • 0:16 FRIDAY!!!! FRIDAY!!!!!! GOING TO SCHOOL ON FRIDAY!!!

  • I'm pretty impressed that you are using real references at your age. Keep it up sport.

Loading...
Alert icon
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more