Back on the cinders today for some middle distance intervals. This was a repeat of my 1st interval workout 2 weeks ago. That is running as far as I can for 4:00 with 2:00+ break x 4. I ran significantly further for each interval this time around, which is a definite sign of Improvement. I was tempted to run a fifth interval because I felt ok on number 4. But I declined because of an abundance of caution. The total workout was 3.5 miles with warm up and cool down. Positive day!