How does smoking increase metabolism?
Asked by rayngirl2 on Nov 25, 2008
in Emotional & Behavioral Issues
Answer
Inhaled nicotine activates the sympathetic nervous system to release the fight-or-flight hormone, epinephrine (also called adrenalin), into the bloodstream. Epinephrine naturally makes the heart rate quicken, strengthens the force of the heart’s contraction, and increases respiration, blood pressure and blood glucose levels. Each of those actions burns calories and so nicotine is said to increase metabolism.
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