Why do humans get migraines?

Abnormal Brain activity -Medline Plus Medical Encyclopedia

Explanation:

Lack of or inconsistent sleep, cramps in the neck or arm, anxiety, depression,

There are some emotional factors that might be: Stress, depression, anxiety, excitement, and shock can trigger a migraine, and there are some  physical causes: Tiredness and insufficient sleep, shoulder or neck tension, poor posture, and physical overexertion have all been linked to migraines. Low blood sugar and jet lag can also act as triggers.

Explanation:

your answer is false

explanation:

because there is law who can mage these sorts of things