The fact that it helped so much deeply disturbed me. When I was tired I would just have cup of coffee. Sometimes I still do, but simply having an “RX Bar” or some almonds can be just as powerful. That’s the level of effect we’re talking about here. In ancient history a topic that came up again and again was that many emotions originated in the stomach. I can see how they might have gotten this.
Also for dietary advice in general recommend the book “How Not To Die”. It’s a good book, but the extreme ethical standards of the author and his desire not to get involved in the fitness industry make it even better than usual. It’s good for general diet advice as well as also preventing the chronic diseases which are so hard to treat after a certain point.
How Not to Die: Discover the Foods Scientifically Proven to Prevent and Reverse Disease https://www.amazon.com/dp/1250066115/
you should not wait more than 4 hours between some kind of consumption