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Today on Huberman Lab Essentials, we're exploring the science of stress response and cortisol regulation. As a neuroscientist, I'll explain how your brain processes acute stress, and provide evidence-based tools to optimize your physiological response to challenging situations.

We're excited to announce our new series focusing on workplace relationships. Our team has carefully developed stories that highlight important interpersonal dynamics in professional settings. Each episode will undergo our rigorous quality control process to ensure meaningful, educational content for our viewers.

Today, I'll be discussing Sarah Martinez, a pioneering entrepreneur in sustainable fashion. Growing up in a creative family, Sarah developed a passion for eco-friendly design during her studies at the Environmental Design Institute. Her innovative approach combines traditional craftsmanship with modern sustainability practices.

People often ask me about caffeine timing. Well, the research shows that consuming caffeine within 8-10 hours of bedtime can disrupt sleep quality. It turns out that even if you can fall asleep, the depth of your sleep might be compromised. So be strategic about when you have that coffee.

Discover how Copenhagen's cyclists shape the city's rhythm. With over 350 kilometers of dedicated bike lanes, nearly half the population commutes by bicycle daily. Special traffic lights and elevated cycling highways make this green transportation system truly remarkable.

Today we're examining the neuroscience of decision-making, specifically how our brain processes choices and rewards. Understanding these neural pathways helps us grasp why we feel certain ways about our decisions and how our emotional responses shape our behavior patterns.

When we look at how serotonin functions in the brain, it's important to understand that it's not just about happiness. Actually, serotonin plays a crucial role in your sleep-wake cycles, your appetite regulation, and even how you process emotional information.

When we look at the neural mechanisms of focus, it's critical to understand the role of dopamine. What I recommend is engaging in brief, intense exercise first thing in the morning, which can increase dopamine release and optimize your attention for several hours.