Withdrawal symptoms from nicotine may include?

Withdrawal symptoms from nicotine are primarily associated with changes in mood and behavior as the body reacts to the absence of nicotine, which it has become accustomed to. The correct answer highlights restlessness and irritability, both of which are common psychological and physical responses when a person is trying to quit using nicotine.

When nicotine is withdrawn, individuals often experience increased tension, anxiety, and frustration, which can manifest as irritability. Restlessness is also prevalent as people may feel agitated or unable to relax, strongly linked to the cravings for nicotine and the body's adjustment to functioning without it.

Other options include symptoms that are not typically associated with nicotine withdrawal. Weight loss and insomnia can occur, but they are not as prominent or defining as irritability and restlessness during withdrawal. Pupilary dilation and aggression are more associated with stimulant intoxication rather than withdrawal. Similarly, visual hallucinations and tachycardia are not common signs of nicotine withdrawal and may suggest other issues or substance use. Hence, restlessness and irritability stand out as classic symptoms indicative of nicotine withdrawal.