Ok, I didn't run 40 consecutive minutes. But I don't care! I topped my previous record by 14 minutes!
I alternated between walking briskly and on an incline for 2 minutes and running for two minutes. By the time I got to the 17th two-minute running interval, I was really worn out but I wanted to get all the way to 20 two-minute intervals. and I did! Sometimes I strung 4 minutes together when I was feeling up to it.
Another best was completing 6 miles running/walking in one hour and 27 minutes. No big deal to avid runners, but it used to take me two hours to walk six miles!
I'm gonna get to 5k without stopping one day, I just know it