I have been doing 15 min stretches both before and after the runs. But I have come across quite a few articles saying that stretching before the runs doesn't help, in fact it slows you down. So I decided to avoid stretching before the run today - my first run after graduation. Turns out this is my best run so far - I managed to complete 4 kms in 30 mins! Should I continue to avoid stretching before the runs? I want to hear the experience of others.