When he was in hospital after his stroke he went 6 weeks without any nicotine, but became an altered personality and once home, having discharged himself, he was determined to find tobacco by any means, and of course did
Upper Respiratory Infection: One of the common causes of phantom smells is an upper respiratory infection, which damages the olfactory system
52 Although there is no clear association between caffeine intake and progression of IBD symptoms, 57 data suggest that caffeine consumption may be associated with worsening of functional GI symptoms in those with IBD, 58 and it may contribute to a perception of worse symptoms in those with IBD
Nature , 202 (4937) (4th ed.): 1062, Bibcode:1964Natur.202Q1062., doi:10.1038/2021062a0, S2CID 4245143