For the runs in Week 4, you will begin with a brisk 5-minute warm-up walk then 3 minutes of running, 90 seconds walking, 5 minutes running, 2 minutes walking, 3 minutes running, 90 seconds walking, 5 minutes running.For tips on what to wear, running technique and staying motivated visit NHS Choices Couch to 5k section at http://www.nhs.uk/Livewell/c25k/Pages/couch-to-5k.aspx and ask for advice and share tips on the forum at http://couchto5k.healthunlocked.com/