As 2014 draws to a close, we take a listen back through some of Newstalk’s highlights from across the last year. From the heartbreaking to the hilarious, our Best Of 2014 series takes you back through all the bits you may have missed – and of course the bits you just wish to relive.

Dean Karnazes is something of a scientific miracle. He can run and run. He has run 50 marathons in 50 days, 350 miles in 80 hours and 44 minutes, with no sleep. Futureproof spoke to him about his incredible feats – and what makes him capable of such things.

Click here for the full Best of 2014 series.