Ran through W4R1. Almost stopped in the middle of the last 5 minutes. I would stop if Laura didn't help me with her "It's half way, keep up!" Looks like this time I had all the troubles I ever had while running: lack of breath, sore calves, numb feet.
Two reasons why that happened I can see:
1. I didn't have rest between W3 and W4: ran Mon-Wed-Fri during W3 and started W4 on Sunday to switch on "Sun-Tue-Thu" schedule. Should I better have had some rest?
2. I only had breakfast of 80 grams of cereal with yogurt at 10AM, had no lunch and ran around 2PM. Had I a lack of energy to feed my muscles?