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Time Perception, Memory & Focus | Huberman Lab Essentials

2025-10-09 Science & Technology
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Andrew Huberman
Andrew Huberman
7.5m subscribers

Mastering Biological Rhythms and Neurochemicals for Time Perception

Understand how your daily biological clocks (circadian/circannual) and fast-acting neurochemicals dictate your experience and memory of time. Apply specific light and work structuring tools to optimize focus and emotional recall.

Short Summary

  • Precise circadian entrainment through light exposure anchors mood, energy, and accurate short-interval time measurement.
  • Dopamine release makes time feel slow in the moment (overestimation) but creates long memories; Serotonin reverses this effect.
  • Leverage ultradian cycles (approx. 90 minutes) for intense focus, separating deep work blocks by 2–4 hours.
  • Structure your day using consistent habits to segment time meaningfully through dopamine release.

This episode explores the multi-scale biological rhythms that govern our sense of time, from yearly (circannual) cycles affecting hormones to daily (circadian) and internal (ultradian) clock systems. Learn how key neuromodulators—Dopamine, Serotonin, and Norepinephrine—act as your internal stopwatches, influencing whether an experience feels fast now but long later, or vice versa. Mastering these factors allows you to better structure your focus periods and manage emotional memory encoding.

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Description

In this ⁠Huberman Lab Essentials⁠ episode, I explore how biological rhythms and neurochemicals impact our perception of time. I describe how the body aligns with daily and seasonal light cycles to regulate hormones that influence energy, mood and motivation throughout the year. I share science-based tools to enhance focus and productivity, including strategies for structuring work intervals and optimizing the timing of exercise and daily light exposure. I also explain how neurotransmitters like dopamine and serotonin influence our perception of time and how factors such as novelty, emotion and routine impact how we experience and recall time. Episode show notes: https://go.hubermanlab.com/cns2pS3 Huberman Lab Essentials are short episodes focused on essential science and protocol takeaways from past full-length Huberman Lab episodes. Watch the full-length episode: https://youtu.be/8IWDAqodDas Watch more Huberman Lab Essentials episodes: https://youtube.com/playlist?list=PLPNW_gerXa4OGNy1yE-W9IX-tPu-tJa7S *Follow Huberman Lab* Instagram: https://www.instagram.com/hubermanlab Threads: https://www.threads.net/@hubermanlab X: https://twitter.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 Newsletter: https://www.hubermanlab.com/newsletter *Timestamps* 00:00:00 Time Perception 00:00:48 Entrainment, Circannual Rhythms & Melatonin 00:04:22 Circadian Rhythms, Tools: Exercise; Morning & Evening Light for Circadian Entrainment 00:09:01 Ultradian Cycles, Focus & Work 00:12:37 Time Perception, Past, Present & Future 00:14:53 Dopamine, Norepinephrine & Serotonin, Time Perception 00:17:11 Dopamine & Serotonin, Daily Fluctuations, Tool: Structuring Work, Sleep 00:18:52 Trauma, “Over-clocking”, Slowing Time & Emotions 00:23:30 Event Perception (Fun vs Boring), Time & Memories 00:26:37 Novel Experiences, Places & People, Retrospective Time 00:28:38 Habits, Tool: Schedule Functional Units 00:30:13 Recap & Book Suggestion Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer

Top Comments (10)

@AhmedAli-bh4xb 2025-10-09

I’m absolutely in love with these videos. I’m jealous of his students who’re able to hear him speak in person and ask him questions.

102 9 replies
@hubermanlab 2025-10-09

Thank you for watching. Please click the subscribe tab and then the "bell" icon to subscribe to our channel here on YouTube and get notified when new content is posted... And thank you for your interest in science! -- Andrew

46 2 replies
@7mattjack 2025-10-09

Correct me if im wrong but I feel like Andrew did exactly what I was hoping he would do and now I am seeing slightly shorter videos that are a bit more dumbed down. I now can sit throguh entire video and not have to look up words every 2 min xd. Nice, thanks Andrew

34 2 replies
@MOTIONCLUBHOUSE 2025-10-09

Loving these short episodes!

31
@monicawallen 2025-10-09

I have a weekly radiologic physics class that is 3.5 hours long with one 10 min break. I want to cry at the end. Now I know exactly why!

14
@IronicleseAndSardoniclese 2025-10-09

Ty! This comment has nothing to do with this video but I’d love to see you interview a neurologist named Kulreet Chaudhary. 😊

6
@amberliveswell3 2025-10-09

Thanks for making it cool to be nerdy again 😎Your channel is a wonderful reminder of the delicate intricacies of our powerful bodies.

6
@tammyamesroyal 2025-10-15

With your help and knowledge I have been able to lose 10lbs in 2 weeks. I am finally losing weight after not being able to for 10+ years! Every video of yours is another tool under my belt and I can’t wait to see what the future holds for me! So grateful for you Andrew! ❤❤❤❤❤❤❤❤❤❤

4
@EmrahYildiz-h8k 2025-10-12

Dünyaya gerçek bir hediyesin Dünyaya gerçek bir armağansın Andy❤

3
@shirintobie-paul3501 2025-10-11

Thank you Dr. Huberman, team, sponsors and supporters. ☀️ We asked and you delivered. These shorts are exactly what I needed!

2

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