Is there a limit to how fast people can run a marathon? Will the two-hour mark ever be beat? Everyday Einstein explains what the research says.
Read the transcript at http://www.quickanddirtytips.com/education/science/how-fast-run-a-marathon
Check out all the Quick and Dirty Tips shows:
www.quickanddirtytips.com/podcasts
FOLLOW EVERYDAY EINSTEIN
Facebook: https://www.facebook.com/qdteinstein
Twitter: https://twitter.com/qdteinstein
