it's good just to forget about PBs, paces and targets, relax into your stride with a smile and enjoy that 'runner's high'!You'll probably know and love those endorphins by now, but just a reminder: running triggers masses of happy-making endorphins
handy. We're not suggesting you become time-obsessed (leave the watch at home for leisurely recovery runs and long, slow sessions), but once you've passed those early months, structured speedwork sessions and carefully paced racing are a surefire recipe
