What negative thing might someone experience if they spend time learning about a subject that is very complex and difficult?\nOptions:\n- headache\n- gain knowledge\n- elation\n- advance\n- aids
Let's be accurate as possible. Think before you answer.
headache
Headaches is a continuous pain in the head.

Headache, a negative thing someone might experience if they spend time learning about a subject that is very complex and difficult.

.

The final answer: headache