A 1/2 a pack-a-day addict, Rachel's message is simple: "I'm hooked." But what does it mean to be
hooked? Every two hours the amount of nicotine remaining in Rachel's bloodstream falls by half. She has two choices. She can either replace the nicotine or begin to sense the onset of early chemical withdrawal, a process that peaks in intensity within 72 hours.
Withdrawal symptoms vary greatly but may include anxiety, irritability, anger, depression, headaches, powerful crave episodes, an inability to concentrate, difficulty sleeping, chest tightness, vomiting, constipation, and fatigue.
