[bjourne]

Here is my personal "this will make you an uber human and you'll code like Linus Torvalds" trick: whipped cream. Skip lunch, and instead drink 2.5 dl (adjust according to body mass) of 40% fat whipped cream. You'll kind of feel disgusting and almost nauseous for 10 minutes afterwards but then you'll have amazing energy for eight hours or more. Awesome for times when you need to deep study some complicated topics.

Of course, YOU are not ME. YMMV :)

[bdm]

Yes, this is a big part of why people like ketogenic diets and intermittent fasting. Avoiding carbs, and initiating a state of ketosis, means your brain is fueled on ketones -- many people subjectively like the feeling.