frank tobacco Franck Boclet Cologne complex scent experience Tobacco by Franck Boclet (2014)

Acid reflux Reflux from your gullet (oesophagus) can cause a nasty taste in the back of your throat which can affect your sense of smell

"If you see someone selling them on the low, there you go, you know they are the ones taking them," said Courtney

This pattern of dual use is just as common as when smokers use nicotine replacement therapy to quit

"And you thought your family politics were bad

Similar content being viewed by others Log in or create a free account to read this content Gain free access to this article, as well as selected content from this journal and more on nature.com or References Burton S L, Gitchell J G, Shiffman S