Can eating a balanced breakfast with protein and healthy fats improve your brain function, even when carbs are limited?

Why might someone feel drained in emotional situations but energized in intellectual or physical ones, and what does that reveal about their personality?
Can watching a team overcome a massive deficit actually help a person find the strength to handle their own real-life setbacks?
Why is it so difficult for outside observers to believe that a seemingly kind person is actually a narcissist?