[VIDEO] Are athletes getting stronger, faster, better?

Are athletes really getting stronger, faster and better?

At a really high level, it appears so.  More people can run a sub-4 minute mile.  Marathon times have almost been reduced in half.  Records are being broken all the time.

But is it really because athletes are getting stronger, faster and better?

Or are there other contributing factors that are more important?

Great video below that explores the topic…