People push your buttons because they know they can, regardless of whether theyâre aware of it. What theyâre looking for is a negative reaction; they want you damaged and on the defensive, for whatever reason.
Horner syndrome is caused by damage to a certain pathway in the sympathetic nervous system. The sympathetic nervous system regulates heart rate, pupil size, perspiration, blood pressure and other functions that enable you to respond quickly to changes in your environment.
Horner's syndrome can be a benign condition or be caused by a vast array of things such as a tumor in the chest, carotid artery dissection, migraines, trauma and some medications to name just a few. It can also be congenital. Some drops and some systemic medications and drugs may cause a constricted pupil.