Share
Copy

The Health Benefits of Marathon Running

Dr. Jordan Metzl explains health benefits of long-distance running.
06:06 | 02/05/2009
Now on ABC News is always on.
Coming Up
9:00 AM ET
GMA Live
9:15 AM ET
News Pop
9:30 AM ET
Opening Bell
10:00 AM ET
News Pop
10:30 AM ET
Headlines & Weather
MORE VIDEO
Sections
Shows

NYC Mayor Bill de Blasio Delivers Remarks at Slain NYPD Officer's Funeral

NYC Mayor Bill de Blasio Delivers Remarks at Slain NYPD Officer's Funeral

Funeral for officer Rafael Ramos held at church in Queens, New York.

North Korea's Internet Crashed After Potential Retaliation Hack

North Korea's Internet Crashed After Potential Retaliation Hack

U.S. officials won't say whether the government was behind the apparent attack on the Asian country's cyber infrastructure.

NYPD Officer Rafael Ramos Honored at Funeral

NYPD Officer Rafael Ramos Honored at Funeral

ABC News' Mara Schiavocampo and Aaron Katersky report from the funeral in Queens, New York.

Woman 'Burns' From Inside Out After Reaction to Friend's Meds

Woman 'Burns' From Inside Out After Reaction to Friend's Meds

Yassmeen Castanada, 19, is in intensive care after suffering an allergic reaction to a friend's medicine.

VP Joe Biden Delivers Remarks at Slain NYPD Officer's Funeral

VP Joe Biden Delivers Remarks at Slain NYPD Officer's Funeral

Funeral for officer Rafael Ramos held at church in Queens, New York.

Funeral Held for Slain NYPD Officer Rafael Ramos

Funeral Held for Slain NYPD Officer Rafael Ramos

Police officers, VP Joe Biden and city officials expected to pay their respects.

"The Interview" Gains Fans Amid New Cyber Threat

"The Interview" Gains Fans Amid New Cyber Threat

Fans show their support by downloading the film and packing theatres; 2 popular gaming systems have become a new target.

Obama on Sony Cyber Attack

Obama on Sony Cyber Attack

President says people should go to the movies and the U.S. government is taking the threat seriously.

Seth Rogen, James Franco Discuss Their Controversial Roles in 'The Interview'

Seth Rogen, James Franco Discuss Their Controversial Roles in 'The Interview'

The Hollywood stars have been under fire for their roles in the movie about assassinating the North Korean dictator.

Zoinks! 'Screech' Returns!

Zoinks! 'Screech' Returns!

One-On-One with the man behind the character

Rare Condition Creates Allergic Reaction to Cold

Rare Condition Creates Allergic Reaction to Cold

Colorado family's two children diagnosed with cold urticaria after breaking out in painful hives.

What We Were Most Addicted to in 2014

What We Were Most Addicted to in 2014

From Kim Kardashian to Meghan Trainor's "All About That Bass," 2014 was the year of the booty.

U.S. Blames North Korea for Hack Attack Against Sony

U.S. Blames North Korea for Hack Attack Against Sony

President Obama wishes Sony had spoken to him before canceling release of "The Interview," says the US will respond.

Who Were Malaysia Airlines Pilots?

Who Were Malaysia Airlines Pilots?

Police search pilots' homes as criminal inquiry into missing jet is launched.

Meteorologist Shot Outside KCEN TV Station Describes Gunman

Meteorologist Shot Outside KCEN TV Station Describes Gunman

Patrick Crawford speaks out for the first time from the hospital.