So, let's talk about smoking. I know it isn't a great topic for people. I just don't have it in me to quit right now.
I'm sorry to hear about that. What would you like to know about it?
Well I know in some cultures smoking is a ritual, but for me it is a habit. Do you know why people get so addicted? 
I think it has something do with the chemicals in Nicotine, that affects the neurotransmitters in the brain
Oh, our chemical messengers, that give us synapses?
Yes these messages are sent to different lobes of the brain really quickly. This can affect thought process and might explain addiction
Wow, nervous systems are so weird to me, I mean, it is science but still. 
The Human Brain is incredibly complex. Neurologists still are not even close to understanding completely how it works!
True that. I just learned about neurogenomics, sheese, what we don't know!