Healthy nonsmokers may experience increased adrenaline levels in their heart after one electronic cigarette (e-cigarette) with nicotine, according to new research in Journal of the (AHA), the Open Access Journal of the American Heart Association (AHA)/American Stroke Association.
Nerve endings in the sympathetic nervous system release both adrenaline (epinephrine) and noradrenalin (norepinephrine), both of which play a role in the fight or flight response. Perpetually increased activity of the sympathetic nervous system contributes to increased cardiac risk.