0_Apprentice
I do not consume caffeine 
1_Wizard
How come? It's the world's most widely consumed psychoactive drug.
0_Apprentice
I think I am just really sensitive to it. It makes me jumpy.
1_Wizard
Ah yes, caffeine stimulates certain portions of the autonomic nervous system.
0_Apprentice
I wonder how long it has been around
1_Wizard
I'm not sure, but caffeine is legal and unregulated in nearly all parts of the world.
0_Apprentice
I see some people drinking a few energy drinks a day. I think that is somewhat unhealthy.
1_Wizard
Yea I would imagine so. Energy drinks are marketed as providing mental and physical stimulation.