So, I am on week 3 day 11, I think. I am 57 y.o. female and about 15 lb. overweight. I tried c25k last summer, but plantar faacitis, bronchitis, and tendonitis sidelined me. I started again in April. Oh, yeah, I live in Phoenix so it is HOT. I am stuck on week 3. I can get all the running in, but the second set of 3 min. I need to break up and I started running slower when it got into the 90s. WELL, today I went out, I did have to break up the last 3 min., but I added in more running. Fastest time and distance in many weeks. Slow going.....but it is going. I am feeling accomplished. Small gains!