In this Huberman Lab Essentials episode, I explain how the neurochemicals epinephrine, acetylcholine and dopamine contribute to focus and concentration. I discuss tools for improving attention, including sleep, sound, structured work sessions, nutrition, caffeine and deliberate cold exposure. I also describe a brief daily meditation and visual focus exercises that train your ability to refocus when attention drifts. Additionally, I discuss the potential benefits and limitations of supplements, prescription treatments for ADHD, and why taking time to deliberately defocus supports concentrated work. Show notes: https://go.hubermanlab.com/GBU899b Follow Huberman Lab Instagram: https://www.instagram.com/hubermanlab Threads: https://www.threads.net/@hubermanlab X: https://x.com/hubermanlab Facebook: https://www.facebook.com/hubermanlab TikTok: https://www.tiktok.com/@hubermanlab LinkedIn: https://www.linkedin.com/in/andrew-huberman Website: https://www.hubermanlab.com Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer