A member asked:

When someone smokes very near me, i get a headache ! why so ?

A doctor has provided 1 answer
Dr. Laurence Badgley answered

Specializes in General Practice

Brain oxygen: Cigarett smoke cause red blood cells to deliver diminished oxygen to the brain, causing blood vessels in the brain to swell. The brain is in a closed space with precious little space to expand, therefore an headache; at least in theory.

Answered 4/4/2013

5.2k views

Thank

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Is it common to get a headache from second hand smoke?

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