I have been trying intermittent fasting for the past three weeks - finish my dinner by 7 and breakfast the next day at 11 or 12. Initially it was difficult, but

I have been trying intermittent fasting for the past three weeks - finish my dinner by 7 and breakfast the next day at 11 or 12. Initially it was difficult, but you get used to it quite fast. One thing I have noticed is my afternoon drowsiness has completely disappeared. I used to feel extremely lethargic and just couldn't put my mind to anything. Now I'm completely alert and my productivity has increased dramatically.