Fact
Nicotine increases your heart rate, tenses your muscles, and decreases the oxygen to your brain, despite a reputation for 'relieving stress.'
Source 1:
TeenVogue.com, Tobacco Companies Target People Struggling With Mental Health, Helaina Hovitz. Jan 27, 2017
http://www.teenvogue.com/story/tobacco-companies-target-people-struggling-with-mental-health