Serving protein instead of sugar for alert attendees: Here comes the science

We know that a high-carb lunch followed by a big piece of cake is going to put people out like you took a sledgehammer to them, while a lean and protein-rich meal will likely leave them alert for afternoon sessions (unless and until you stun them into unconsciousness with dark rooms and PowerPoint nap-inducers). But did you know why? Here's a look at the reasons why our bodies react to sugar and protein the way they do, and why you should at least top that cake with some slivered almonds