Experiences - Smoking leaves swim feeling slow?

[Psychonaut08]

This sounds quite strange but swim has been a casual smoker for the last year or so, he used to only smoke weed for years but eventually picked up the habit, goes through roughly 40-60 a week.
swim finds though, sometimes when he has a cigarette to himself before he is about to do some work or something, he feels incredibly lazy and quite relaxed, almost as if he's had a cheeky few pulls on a joint.
it's gotten to the stage where it makes his work productivity suffer so he's stopped.
afaik this is abnormal, can anyone explain/offer any insight into this? :S

[honourableone]

I believe that (as in I don't smoke so can't directly relate to experience, but have read that) when taking deep puffs of tobacco, the nicotine levels in the blood are higher than with short rapid puffs, and the nicotine goes from being a stimulant to a sedative, so maybe the method you smoke is an issue (especially if you started off smoking weed, suggesting very deep lungfuls of smoke). But - the change from stimulant to sedative is also said to happen with increasing use.

The only other advice I can give would be the obvious (ie, giving up, drinking coffee), so I apologise for not being able to help more.

Going off topic, when I first read the title of this thread, I read "Smoking leaves leaves swim feeling slow?" .