Running

Definitely. Having not cycled since 3 months ago I decided to dust off the bike on New Years Day. It was cold, there were endless bank holiday queues of cars and it was a bit boring. Not to mention faffing about with clothes/equipment/maintenance. Fuck it.

I agree with this sentiment - it's partly what made me start running again when I was studying and had hardly any free time. New Year resolution is to get back on the bike and start using it for other than my commute though.

And Pifko - you're probably right about doing too many miles for a newbie, my body probably isn't used to the pounding yet. Thing is, my heart / lungs / legs can manage it at the time so I find it hard to hold back!