Translation of "過剰な興奮状態にあることです" in English

その原因は脳が 過剰な興奮状態にあることです

which is the fact that our mind is overstimulated.

問題は気が散ることではなく 脳が過剰な興奮状態にあることです

It's not that we're distracted; it's that our brains are overstimulated.