It is said that fasting results in the release of endorphins, the hormones that are responsible for happiness.
If you intermittent fast and are less worried about how many calories you’re eating in a day, what time you have to wake up to get your breakfast in, and other things that have you anxious surrounding food.
When you intermittent fast you are likely to experience more focus. A clearer head can lead to a greater understanding of situations that you are in, things you have to get done at work, etc. all things that can reduce anxiety when you are well-prepared for anything the day has coming your way.