Why Crying Cause Headache? Understanding Through The Lens of Psychology!
Briefly

Crying triggers stress hormones like cortisol and adrenaline, which cause muscle tension in the face and scalp, leading to triggering tension headaches after emotional episodes.
The limbic system controls the emotional response, producing tears in reaction to feelings of sadness or anger, while positive feelings typically don’t induce headaches.
Read at Calm Sage - Your Guide to Mental and Emotional Well-being
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