You've undoubtedly heard the buzz about Omega-3 fatty acids. They're associated with everything from healthy brain growth to energy enhancement, increased memory and more successful cell-to-cell communication [sources: Loh; Online University].
When it comes to learning and attentiveness, you can't beat Omega-3s. And avocados are an excellent source of them. Slice some avocado and put it on a sandwich, mix it with tomatoes, onions and spices to make guacamole or simply eat it plain. It goes bad quickly, but avocado fans know that leftovers aren't usually a problem anyway.