So much wrong in this thread.
If any of you would have any knowledge on this subject you wouldn't write such nonsense.
It has been proven many times that short term fasting BOOSTS memory, cognitive performance, INCREASES ENEGRY LEVELS AND CONCENTRATION (due to increased catecholamine output), blunts appetite.
All in all the body funtions better fasted than fed. This is a fact. Of course we are talking short term fasting here.
I am almost sure none of you guys has any knowledge on the subject and also pretty sure that none of you have tried fasting because you lack the discipline and willpower required to do it. Sorry that I have to say this but I hear shit like this all the time and it's always the guys who can't even give up their beloved breakfast. Then they justify this by talking nonsense like you some of you guys in this thread.
How can I function when I go 8 hours without food? With all the honesty here I function even much better when I'm without food for 24 hours or more. The longer I go the better it gets. The increased catecholamine output will put you in a great mood and allow you to concentrate way better than you have ever imagined before. Feels similar to amphetamines to me.
Brain does not function if you don't eat for a few hours? Where did you pull this one from? Come on, this is a joke right?
There has also NEVER BEEN PROVEN in any way that short term fasting causes muscle loss. This is another broscience story. Yes, there have been many studies done on this topic and no the subjects involved did not use any anabolic substances. So no, you don't need any amount of gear to retain muscle while fasting.
In fact I discovered fasting years ago while I was still at uni. Some days I would forget about food while studying and I quickly noticed how much more energy I had in the evening when I didn't eat during the day. I could easily pull an all nighter then even after already having studies for 8 hours straight whereas when I had several meals in between I was sleepy and ready to go to bed before midnight. I started doing this regularly during exam periods and it worked wonders. So much about brain not functioning.
I suggest you guys to educate yourselves properly on the subject. There's always time to learn something new