I’m still able to run today after running my 3×800 intervals yesterday
@ 6:53 pace. I dropped down to 172 pounds from an average of well
over 175, mainly from both lack of food and liquids yesterday. I wouldn’t recommend it.

Today’s run was a 3.2 mile hill run at 3% incline on a Precor 966i
treadmill in 31:06 (9:44 pace). Supposedly, that’s roughly the same
level of effort as an 8:44 pace for that length of time.