If you or someone you know has ever quit smoking with nicotine gum, you can thank Sweden. Nicorette, the first product, was created by Leo AB in Helsingborg. It was inspired by the fact that while on duty, smoking Swedish submariners would switch from tobacco to chewing tobacco or snus to get their nicotine fix. Nicorette wasn't the first time nicotine was placed in chewing gum, but they did design a polymer that regulated the flow of nicotine into the bloodstream, allowing for a continuous release and a gradual withdrawal, allowing millions of people to stop for good.