Sun-cured tobacco, Bastam, Iran Curing and subsequent aging permit with the sluggish oxidation and degradation of carotenoids in tobacco leaf. This produces certain compounds in the tobacco leaves and provides a sweet hay, tea, rose oil, or fruity aromatic flavor that contributes into the "smoothness" on the smoke. Slicing down gradually mea

Considering that creating causation through experimental trials was not possible as a result of moral constraints, a prolonged analyze was performed as a way to establish the powerful association needed to let for legislative motion versus smoking tobacco.[citation needed] In smoking, long-term publicity to compounds present in the smoke (e.g.,