A member asked:

I feel dizzy like i am in a tunnel and going to pass out when i cough why?

A doctor has provided 1 answer
Dr. Ira Friedlander answered

Specializes in Cardiac Electrophysiology

Coughing increases: the intrathoracic pressure and impedes the return of blood to the heart. This results in a decrease in the blood output to the head for a few beats and therefore dizziness.

Answered 10/31/2017

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