Why do we get headaches? explain

Explanation:

Most headaches happen in the nerves, blood vessels, and muscles that cover a person's head and neck. Sometimes the muscles or blood vessels swell, tighten, or go through other changes that stimulate the surrounding nerves or put pressure on them.

"Most headaches happen in the nerves, blood vessels, and muscles that cover a person's head and neck. Sometimes the muscles or blood vessels swell, tighten, or go through other changes that stimulate the surrounding nerves or put pressure on them."

Honestly no one really has a straight answer. I believe that there is too much oxygen in the brain somtimes.  Or your blood is really thick, like drink water or take asprin to thin out the blood.

Explanation:

answer; i believe the answer is moderate level;