I smoked for 17 years, taking breaks during both of my pregnancies for a total of about 3 1/2 years of non-smoking during and between the two pregnancies. I started back up shortly after my younger daughter was born, in early/mid 2009.
I quit last August, and my symptoms went downhill from there. You might already know this, but scientists have found that smoking helps with pain, depression, and anxiety.
All of us know the incredibly negative effects of smoking, so I don't think I need to point out that smoking is directly responsible for several kinds of cancer, heart problems, and emphysema. But, I'll mention it to make sure you understand I am not endorsing smoking!
Scientists note that nicotine by itself in e-cigs, chewing tobacco, or transdermal patch is not as effective as a delivery method as smoking nicotine is (smoking sends nicotine straight to the brain within a few seconds, other methods take longer).
Smoking cigarettes activates all nicotinic acetylcholine receptors (nAChRs), which then activates dopamine, norepinephrine, 5-HT, glutamate, and GABA.
Here's a clip from the article:
In animals, nicotine has effects on cognitive performance, vigilance, locomotor activity, body temperature, respiration, cardiovascular and gastrointestinal tract function, electroencephalogram activity, cortical blood flow, and pain perception. Many of these effects are also seen in humans. Given the relative paucity of nAChRs in the brain, it is surprising that the alkaloid has such diverse and often profound effects. However, the effects of nicotine on transmitter release, increasing ACh, DA, norepinephrine (NE), 5-hydroxytryptamine (5-HT), glutamate, and GABA release in the brain, and calcitonin gene-related peptide and Substance P in the spinal cord, provides a means to amplify the effects of nicotine in what has been termed the “high-impedance locale” of the synapse (Ramirez-Latorre et al., 1998). The recent finding (French et al., 1999) that nAChR activation mediates neurotrophic (nerve growth factor, brain-derived neurotrophic factor, α-fibroblast growth factor) actions suggest that nAChR activation may provide long-term neuroprotective effects in addition to acute functional activities.
ACH: acetylcholine
DA: Dopamine
Dopamine, of course, is a hormone which makes you feel good.
http://jpet.aspetjournals.org/content/292/2/461.short
I don't know about you other smokers or ex-smokers, but I loved smoking! Made me feel better. Looked forward to having a smoke in the morning. Miss it now :(
I don't miss the smell in my clothes and hair, the serious expense (it's up to $8 a pack here now), coughing, yellowy teeth, hiding it from my parents, worrying about my kids watching me through the window, and worrying about cancer all the time.
Anyhow, figured it might help explain to you other guys who smoke why it's making you happy, and for those of you who quit, why you are feeling worse even though the research and doctors say you'll feel better once you're not smoking anymore. My breathing doesn't seem to be better, and sometimes when I walk up the stairs it's worse.
But I wouldn't go back to smoking now that I've been quit for almost 10 months. Too hard to quit again, and cancer runs in my family. I might try out the e-cigs again, they worked to wean me off of cigarettes. I figure any help I can get!
Best of luck to you guys :)