Caudate Nucleus

Caudate nucleus

The caudate nucleus, an area of the brain that controls voluntary movement, illustrates this adaptation. Without the nicotine, neurons cannot maintain impulses at the levels they had previously. As a result, some smokers experience hand tremors between cigarettes. These "smoker's tremors" may be hard to see, because a smoker hides them by smoking another cigarette. The tremors may be a sign of withdrawal, but they will go away if the smoker gives up smoking for good.

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