Vancouver has recently experienced conflicts with other Clark County communities because of rapid growth in the area. The city's first annexation more than doubled its size in 1909, with the largest annexation of 1997 adding 11,258 acres (45.56 km 2) and 58,171 residents.
Why is nicotine addictive? When you use tobacco products, nicotine is quickly absorbed into your bloodstream. Within 10 seconds of entering your body, the nicotine reaches your brain. It causes the brain to release adrenaline, creating a buzz of pleasure and energy. The buzz fades quickly though, and leaves you feeling tired, a little down, and wanting the buzz again. This feeling is what makes you light up the next cigarette.
The Nicotine, although very similar to Acetylcholine, does not act exactly like the neurotransmitter and consequently causes the systems that it affects to function abnormally. The Nicotine causes a spontaneous release within the brain of other neurotransmitters that affect mood, appetite and memory. Additionally, many systems such as the respiratory and cardiovascular systems are sped up (4). Nicotine causes the pancreas to release glucose, causing smokers to be marginally hyperglycemic.