#344 - AMA #70: Nicotine: impact on cognitive function, performance, and mood, health risks, delivery modalities, and smoking cessation strategies

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In this “Ask Me Anything” (AMA) episode, Peter dives deep into nicotine—a topic increasingly debated both scientifically and publicly. He clarifies the critical differences between nicotine and tobacco, highlighting why nicotine alone isn't primarily responsible for smoking's severe health consequences. Peter examines the specific risks associated with nicotine use, including addiction, sleep disruption, cardiovascular concerns, and effects on mood and anxiety. He evaluates various nicotine delivery methods, from traditional cigarettes to gums, pouches, and synthetic alternatives, ranking them according to their relative safety. Additionally, Peter explores nicotine's potential positive and negative impacts on physical performance, cognitive function, fertility, and its interactions with other stimulants like caffeine. Finally, he provides practical guidance for minimizing risks with nicotine use and offers thoughtful strategies for smoking cessation and effective nicotine replacement therapies.

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We discuss:

• Revisiting the previous AMA on microplastics: low-effort, high-impact changes to significantly reduce microplastic exposure [1:45];
• Overview of episode topics related to nicotine [3:30];
• The current landscape of nicotine research [4:45];
• Addressing the common misconception that nicotine itself is the primary cause of tobacco-related health risks [6:45];
• Peter’s Marlboro-branded apparel is a nostalgic tribute to the Formula One era and not a sign of support for smoking [10:00];
• The limitations of current research on the health risks of nicotine itself [12:15];
• The most common side effects of nicotine [18:15];
• The impact of nicotine on sleep [21:30];
• Nicotine and mood: how nicotine can have both anxiety-inducing and calming effects based on genetics and dosage [25:00];
• The addictive properties of nicotine: factors influencing addiction risk, and why certain people may struggle more than others [29:15];
• The various nicotine products and nicotine delivery methods available: effects, absorption rates, and potential risks [33:45];
• The relative risks of various nicotine products: how differences in nicotine concentration, absorption rates, and presence of contaminants impact their safety [37:00];
• Potential cognitive benefits of nicotine: short-term benefits and impact of chronic use [44:45];
• How nicotine exposur