AOL.com Video - Polly Demille on the Physiology of a Good Runner

Videos Of The Day

• 
  
  WATCH: Historic Bridges Catches Fire, Falls...

  (1:12)

  Morning Rush

  
• 
  
  Mariah Carey Suffers Wardrobe Mishap

  (1:25)

  E!
• 
  
  Mom Has Son Arrested For Stealing Her...

  (1:11)

  Morning Rush
• 
  
  Will and Jaden Smith Share Father-Son Moment...

  (1:10)

  ITN
• 
  
  Jennifer Hudson In Talks To Be American Idol...

  (1:11)

  SplashNews
• 
  Illinois Lottery Checks Bounced

  (1:20)

  Morning Rush
• 
  Katherine Webb Eats Only 1,120 Calories A Day?

  (1:20)

  The Fumble
• 
  Bradley Cooper Says Jennifer Lawrence Hated...

  (1:23)

  Hollyscoop
• 
  Leonardo DiCaprio Fan Pays $1.5 Million To...

  (1:17)

  Hollyscoop
• 
  Parts of 747 Cargo Plane Fall on Roof

  (1:12)

  Morning Rush
• 
  Carrie Underwood Donates $1 Million To Red...

  (1:20)

  Stereotude
• 
  Kristen Stewart Loses It On Paparazzi After...

  (1:01)

  Hollyscoop
• 
  Forbes Releases List of World’s 100 Most...

  (1:20)

  Morning Rush
• 
  Michael Clarke Duncan's Grave Vandalized By...

  (1:18)

  Hollyscoop
• 
  Man Who Vandalized Picasso's Art Pleads Guilty

  (1:32)

  Morning Rush
• 
  38 Models, $25 Million, and Leo DiCaprio in...

  (1:52)

  PopSugarRush
• 
  Teen Taking Sports Illustrated Model to Prom

  (1:31)

  Morning Rush
• 
  Spirit Airlines CEO Pokes Fun at Company's...

  (1:36)

  Morning Rush