Hello my new friends! I'm entering the second week of this newfound facscination that is artisinal ouddery, and my experience this far has raised a few questions: As @Rasoul Salehi so kindly pointed out, Oud doesn't only emit a powerful aroma, it it also has measurable physiological effects that I've experienced first hand. I don't drink alcohol or caffeine, and I am quite sensitive to psychoactives in general. A few nights ago, by the end of a multi-oil, multi-swipe day, I noticed that my heart rate was a bit elevated and it took almost two hours two fall asleep (I generally fall asleep without a problem). And last night, I was beginning to feel tired but needed to finish writing the draft of an article and email it before heading to sleep. I thought, hmmm, maybe some oud might do the trick, so I swiped a touch of Viet Zephyr and I had a mild buzz going, enough to get me through the task. But here's where oud might resemble caffeine and create a dependency like Rasoul described. Can anyone else speak to this? I read the lengthy thread about "Olfactory fatigue? Oud Habituation?" but found only a discussion about building a tolerance. To me this is a very important point to be clarified: It's one thing to need more oud to get the same enjoyment or the desired effect, but it is something else to need oud in order to function or in order to enjoy oneself fully. I suppose these issues have been addressed on the forum before, but I'm very curious to hear if there me be such a thing as "oud dependence." By no means do I mean to suggest that oud and its powers are a threat or a vice. Nature's greatest treasures are must alwyas come with warning labels: "Caution: Powerful."