Nicotine. The life saving miracle natural substance. Pharma trying to remove by 2030

[Knows]

And if you ask similar questions about caffeine:

Has caffeine. proven to be addictive

AI OverviewCaffeine is a widely consumed, psychoactive stimulant that is proven to be addictive, causing physical dependence, tolerance, and withdrawal symptoms. It acts on the central nervous system to increase alertness, but habitual use can lead to cravings, headaches, and fatigue upon cessation. While not as addictive as drugs like cocaine, it is recognized as a substance of dependence. Key Facts on Caffeine Addiction

• Mechanism of Addiction: Caffeine stimulates the brain by blocking adenosine receptors and promoting dopamine release, which reinforces its rewarding effects.
  
• Evidence of Dependence: Studies show users can develop tolerance—needing more for the same effect—and experience withdrawal symptoms within 12–24 hours of quitting.
  
• Withdrawal Symptoms: Common symptoms include headache, fatigue, irritability, difficulty concentrating, and muscle pain.
  
• Defining Addiction: While some debate if it is a true "addiction" or just "dependence," the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) recognizes "Caffeine Use Disorder" and "Caffeine Withdrawal".
  
• Withdrawal Management: The best way to break dependence is to gradually reduce intake to avoid severe withdrawal.
  
• Risk Factors: High consumption, particularly exceeding 750 mg per day (roughly 5-7 cups of coffee), increases the risk of dependence.