Mayo Clinic Minute: Human endurance - will there be a 2 hour marathon?

Is it possible for someone to run a marathon in less than two hours? Dr. Michael Joyner has been studying human performance since medical school. He says in the 70s and 80s …

… which is how much of the athlete's engine capacity can be used and for how long.

So far, the record is 2:01:39. Dr. Joyner says if, during a race, all conditions are right.

[ChrisGaultHealthyLiving]

Thanks, I’m sure the 2 hour marathon will break it someday. They said the same thing about the 4 minute mile years back. Probably more mental than physical. Just in my humble opinion. Thanks for the video!