No not the drug, the podcast!! Love going back to intervals as it breaks the monotony. Also Laura is great as she is with you all the way giving you encouragement. It feels a bit weird to begin with as my stride pattern is very different to the beat but that also makes it fun as it mixes it up a bit.
I decided to jog the last 7 minutes; felt a bit of a cheat completing the run so early. Saying that I feel I could have ran a bit faster, although I kept to the beat my stride was a bit small.