Huh, I had kind of taken the cortisol-belly fat connection as a given.
I wasn't asking about cortisol during 40+ hour fasts but in these up-to-40-hr fasts you write about here... I suppose even in these 40-hour-fasts there is some protein tissue/muscle breakdown but it's not significant compared to the use of stored fat?
I am very excited to try an extended IF! I am going to give it a shot next week, after a week of one meal (20 or more hours) IF's.
Thank you so much for taking the time to do this and share it.
The more I see the less I know for sure.
So I am currently in hour 39 of a 40-hour fast, and I have to say it went smoother than I thought. I do 24 hours once a week, and I do a 16-8 pattern every day, so it really wasn't that much of a stretch. Around hour 22 I started feeling pretty sh*tty. I decided to push through and it subsided within an hour or two. I ended up being incredibly productive during the evening (yard work, cleaning, laundry). I had no trouble sleeping, and woke up feeling just fine. I'm starting to get hungry again now, and I'm looking forward to a healthy plate of delicious brisket in t-33 minutes.
Pklopp, I'm sorry if I missed it, but how often do you engage in an extended fast like this? Once a week? Every other week?