Yes, that’s my experience. I do it for mental clarity and when I know I will have a stressful work week. It definitely works. It also works with any pain you may have on your body and losing weight it a bonus. I love DF and it will become my lifestyle.
Extraordinarily. Fasting clears up mind fog (that I often don’t even realize I have until I fast) allows me to focus and stay focused for long periods of time and on shorter fasts my energy is usually way higher