https://www.ecigarettedirect.co.uk/ashtray-blog/2017/04/nicotine-body-vapers.html
Nicotine “has a “biphasic” action: if you have a little bit, it acts as a stimulant, but if you have more, it can relax you”
“If you want a more relaxing effect, take big puffs and keep vaping until you feel...