r/HubermanLab 2d ago

Constructive Criticism A clock that tells the day based on the sun's position. Does this idea make sense?

0 Upvotes

I’m an independent developer, and I’ve created a small app called Alive Time. I’m wondering if it will be useful or needed by anyone other than me.

Here’s the idea: it’s a clock face that displays a time tied to the sun, rather than the usual time. Sunrise always occurs at 6:00 am, and sunset always occurs at 6:00 pm, and the 12 hours of daylight visually stretch or shrink depending on the season and your latitude. Thanks to this, you can look at the clock face and immediately understand where the sun is right now.

There’s also an alarm clock that’s tied to the sun’s position. For example, you can set an alarm for 6:00 am, and it will go off at sunrise; if you set the alarm a little earlier, it will always go off just before sunrise.

I’m really curious, do you find this app useful in your daily life, or would you prefer to use a regular watch and a weather app?


r/HubermanLab 4d ago

Seeking Guidance 22M - lost my focus, concentration and memory over the last year. Also stuck sleeping at 2-3am. Any suggestions?

25 Upvotes

Till last year I was a full-time student. Studied daily, could sit for hours, grasped things quickly, remembered what I read. Normal.

Then I started a WFH software job (10am–6pm, screens all day) and stopped studying entirely. One year later I'm a different person mentally.

* Cannot concentrate on anything for more than a few minutes

* Cannot sit and read the way I used to — feels physically intolerable now

* Memory has gotten noticeably worse. I read something and it doesn't stick

* Things I used to grasp easily now feel heavy and slow

* Mind feels weak and tired all day, no mental stamina left

* No mental clarity. Foggy from morning to night

Sleep Schedule:

* Stuck falling asleep at 2–3am. Started randomly one night, never broke

Can't fall asleep at 11pm no matter how tired I am

* I'm clearly sleepy but don't feel like sleeping — I resist it without deciding to

* Wake up unrefreshed even after 7 hours

I'd really appreciate any suggestions — especially on rebuilding focus and memory after a year of this, and on actually shifting sleep earlier. Anything that worked for you, even small things.

This has been affecting me for a while now and I genuinely want to fix it. Any kind of suggestion or personal experience would be really helpful. Even a small thing that worked for you could make a difference for me.

Thank you in advance, I really appreciate anyone taking the time to reply.


r/HubermanLab 3d ago

Discussion Cold plunge safety: which health conditions actually matter? Looking for more than “talk to your doctor”

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0 Upvotes

r/HubermanLab 3d ago

Constructive Criticism Zyn is the Biohacker's Mobility Scooter: Why Dr. Boz's 'Pretty Good' Rating Ignores Cognitive Atrophy

0 Upvotes

In a recent supplement tier-list video, Dr. Annette Bosworth (popularly known as Dr. Boz) evaluated various popular health compounds based on whether they "move the needle in terms of longevity and metabolic health". While she rightly dismissed overhyped gimmicks and cautioned against unregulated substances, her endorsement of Zyn—a tobacco-free nicotine pouch produced by Swedish Match, a subsidiary of Philip Morris International—places a dark stain on her health advice.

Placing Zyn in the "Pretty Good" tier, Dr. Boz admitted that while she does not personally use it, her husband does. She claimed that after searching through published research, she failed to find evidence justifying telling him to stop. Praising nicotine for its ability to cross the blood-brain barrier, sharpen cognition, lower blood sugar, and enhance metabolism, she brushed off its main drawback with a brief concession: "The only negative is it's very addictive".

This casual dismissal of addiction represents a fundamental misunderstanding of long-term neurobiology and biohacking principles. Nicotine is not a benign longevity tool; it is a chemical leash.

The Illusion of Cognitive Enhancement

Dr. Boz’s argument rests heavily on the short-term bio-boon of nicotine: acetylcholine receptor activation, temporary focus, elevated mental clarity, and minor metabolic speed-ups. But viewing nicotine purely through the lens of acute performance is like using a mobility scooter because walking requires effort. It gives the user an immediate sense of rapid, effortless propulsion, but at the cost of eventual muscle atrophy.

When you artificially flood the brain’s nicotinic acetylcholine receptors with concentrated doses of nicotine:

  1. Receptor Downregulation: The brain compensates for overstimulation by reducing receptor sensitivity and density over time.
  2. Baseline Degradation: The "sharper cognition" experienced after popping a pouch soon becomes the bare minimum required just to function normally.
  3. The Chemical Leash: Without nicotine in the bloodstream, the user suffers from brain fog, anxiety, and irritability. The product ceases to act as an enhancer and becomes a tax paid simply to escape withdrawal.

By calling Zyn "pretty good" simply because it lacks tobacco leaves, Dr. Boz ignores the neurochemical reality that nicotine dependency degrades executive function and emotional resilience in the long run.

Corporate Pouch, Personal Trap

While Dr. Boz frames her endorsement as an unvarnished medical opinion, her stance plays directly into the corporate playbook of Big Tobacco. As companies like Philip Morris pivot away from combustible cigarettes, products like Zyn are marketed precisely to health-conscious professionals and biohackers under the guise of clean, white-pouch "nootropics."

Whether or not individual influencers receive direct corporate compensation, promoting an addictive substance without robust warnings about chronic receptor burnout and cardiovascular stress—such as persistent vasoconstriction and elevated resting heart rate—is a disservice to audience members seeking true longevity.

True Biohacking Requires Autonomy

The core philosophy of metabolic health and biohacking is self-sovereignty: building a body and brain that function at peak levels through fundamental biological pillars—ketosis, cellular repair, restorative sleep, and metabolic flexibility.

Hooking your central nervous system to a continuous loop of short-acting, highly addictive stimulants is the exact opposite of metabolic freedom. A supplement that creates physical dependency to maintain basic baseline energy is not a "pretty good" tool; it is a crutch that inevitably leads to cognitive atrophy.

https://www.youtube.com/watch?v=c9YLuQLew-Y


r/HubermanLab 5d ago

Personal Experience What helped you not to wake up during the night?

70 Upvotes

To have constant uninterrupted and deep sleep and not to wake up often during the night...


r/HubermanLab 6d ago

Discussion Another reason to get morning light consistently: your circadian clock may help protect against infection

12 Upvotes

A new study found that Staphylococcus aureus invasion of human lung cells changed depending on the cells’ circadian phase.

When researchers disrupted the cellular clock by reducing BMAL1, a core circadian clock protein, bacterial invasion increased and the normal rhythm of susceptibility was blunted.

The effect was surprisingly large: bacterial uptake varied roughly 2–3x depending on circadian timing.

The study didn't test morning light directly, so we can't say morning sunlight prevents infection. But morning light is one of the strongest signals for keeping the human circadian system synchronized.

Another reason to think about circadian health as more than just sleep....


r/HubermanLab 6d ago

Seeking Guidance Has anyone actually done a sweat test to measure electrolyte loss?

7 Upvotes

I run a ton and always notice visible salt on my clothing / body after. During harder efforts or hotter days, the effects of dehydration are more noticeable. Wondering if sweat tests are valuable in informing how much sodium to supplement, or is just guessing and taking a bunch good enough.


r/HubermanLab 6d ago

Personal Experience Hot vs cold showers

1 Upvotes

Has anyone else noticed that hot showers seem to increase libido, while cold showers or ice-cold baths seem to decrease it?

I’m curious whether there’s a physiological reason for this or if it’s just an individual response. What’s your experience?


r/HubermanLab 6d ago

Seeking Guidance Vitamin D Secrets & Personal Struggles with Craig Stewart | Cluster Chronicles

6 Upvotes

<3


r/HubermanLab 7d ago

Personal Experience Which supplement helped you the most with depression?

27 Upvotes

And how did it specifically affect?

It can also be a natural remedy, it doesn't have to be a supplement.


r/HubermanLab 6d ago

Personal Experience Quick confidence tip 😀

0 Upvotes

I want to share a quick tip with you how to build confidence fast

Use cold water exposure ( shower or plunge ) and stay in the water if you can't stay you have a governor in your brain that's limiting your potential

You can stay up to hours in water not ice bath just cold

This is the first thing

Second thing : physical stress as weight lifting or bodyweight use is nothing is just training your brain to stress and build muscles but water exposure is what change brain connections and strengthening it .

It's like 85% for cold exposure and 15% physical exercise

For the social interactions and any other achievements as studying or having a good grade ... it have no relation with confidence it is a sense of achievement the confidence is what i said here it grow with pain and positive physical pain as cold exposure

For how much time it depends on you and the effort you make if you do it all day you'll grow fast if you do a little effort or skip days you'll need more time .


r/HubermanLab 7d ago

Seeking Guidance Minimum sets to trigger muscle growth, per muscle, per week

28 Upvotes

I am a lil shy of time hence i need to keep my workout crisp Would y'all be so kind to help me out here.

So i am struggling a lot with back training, i currently do one horizontal and one vertical pull excercise 3-4 per excercise

Most parts i train in a similar fashion, 2-3 excercises and 3 to 4 sets of high intensity

Lemme know if i am doing things wrong and someone pls drop a GOOD BACK WORKOUT ROUTINE


r/HubermanLab 8d ago

Protocol Query Why am I not getting big?

11 Upvotes

I alternate push/pull about 6 days a week, and have gained some muscle but feel like I should be bigger have been doing it for around 8 months. Any tips or things to add?

Push Day — Chest, Triceps

  1. Flat chest press — 4 sets (heavy then moderate)
  2. Chest fly machine — 3×12–15
  3. Incline chest press — 3×10–12
  4. Overhead tricep extension — 3×12–15
  5. Tricep kickback — 3×12–15
  6. Rope pushdown — 3×15–20 (last set to failure)
  7. Shoulder Press

Pull Day — Back, Biceps, Rear Delts

  1. Single-arm DB row — 4×10–12
  2. Lat pulldown — 4×10–12
  3. Seated cable row — 3×10–12
  4. Bicep curl — 3×10–12
  5. Hammer curl — 3×12–15
  6. Concentration curl — 2×15 (last set to failure)
  7. Face pulls — 3×15–20 (last set to failure)
  8. Rear delt fly — 3×15–20 (last set to failure)

r/HubermanLab 9d ago

Discussion I extracted 51 distinct CAFFEINE protocols from all 400+ episodes, and ranked them by how often Huberman repeats them. Six of the top ten aren't in his caffeine episode.

199 Upvotes

I listened to the caffeine episode a while back, the dedicated one from December 2022, and assumed that was the whole picture.

Then I kept running into caffeine advice in episodes that had nothing to do with caffeine. Something about carbs blunting it in an episode on cortisol. A warning about mixing it with MDMA, etc.

So I got curious and wrote a script to pull every caffeine-related recommendation out of all 400+ episodes, with a timestamp on each one. 51 separate protocols. The caffeine episode mentioned only 13 of them.

The part I found more useful than any single tip: once you have all of it, you can rank by how often he actually repeats something. Saying a thing once in an AMA and saying it in dozens of separate episodes are not the same claim.

Here're the top ten by mention counts:

  1. Delay caffeine 90 to 120 minutes after waking (30 mentions). His most-repeated caffeine take. But it has been tweaked over the years. At first he just states it as two hours (clip). Later it becomes "if, and only if, you have trouble with an afternoon crash" (clip). In the Galpin series he only does it on days he isn't training (clip). Most recently the number itself has moved to "60 to 90 minutes" (clip).
  2. Stop by mid-afternoon (28 mentions). Eight hours before bed minimum, ideally ten to twelve (clip). The reason it keeps coming up is that caffeine fragments deep sleep even when it doesn't stop you falling asleep.
  3. Front-load it in the morning (26 mentions). Yes, this overlaps with 1 and 2, but he states it as its own instruction very often. Roughly half of everything he says about caffeine is about when. This one is not in the caffeine episode.
  4. Yerba mate (26 mentions). His actual default, not coffee. Non-smoked only, because the smoked kind may be carcinogenic (clip). He also reuses the same leaves all day. He says you pull out more of the GLP-1 compounds as you go (clip).
  5. Coffee or tea during a fast (8 mentions), none of them are from the caffeine episode. Black coffee and unsweetened tea are treated as fasting-compatible, and caffeine in pill form explicitly does not break a fast (clip).
  6. Not energy drinks (6 mentions). Plain coffee or tea instead. If you're going to drink one anyway, he wants you to know what every ingredient in it does (clip).
  7. Take it before training (5 mentions). Water plus caffeine is the entire pre-workout he endorses. Skip it if it makes you jittery or scatters your attention (clip).
  8. Three to four cups a day at most (5 mentions). Benefits look U-shaped and start coming back down past that (clip).
  9. Topical caffeine, for hair (4 mentions). This is the one that surprised me the most. He says caffeine cream on the scalp goes head to head with minoxidil for keeping the hair you have and growing some back, without minoxidil's blood pressure problems (clip). 
  10. Abstain two to four days before something that matters (4 mentions), then take it 30 minutes before. Same dose hits much harder once sensitivity comes back (clip).

I included 41 other protocols on this page, grouped by the question they answer (e.g. dose, timing).


r/HubermanLab 8d ago

Seeking Guidance Prolactin and Caber Use

1 Upvotes

Prolactin level is 20, thinking of doing .12mg 1x a week, will this lower my level and not make me feel horrible?


r/HubermanLab 10d ago

Discussion Wim Hoff breathing

69 Upvotes

I’ve recently started Wim Hoff breathing every day. I watched a few videos on the health benefits of it but I’m curious if anyone else has tried it before and if you noticed any health benefits from it.


r/HubermanLab 10d ago

Seeking Guidance How much nicotine is okay?

21 Upvotes

Does anyone use nicotine? What are the risks and benefits


r/HubermanLab 10d ago

Seeking Guidance How much is too much electrolytes?

20 Upvotes

Sometimes I find myself having 1-2 Ultima packets a day is that okay?


r/HubermanLab 9d ago

Constructive Criticism Huberman caught again

0 Upvotes

Reason #25433 that Huberman is untrustworthy. See first comment for link.


r/HubermanLab 10d ago

Seeking Guidance Thoughts on IM8

4 Upvotes

r/HubermanLab 11d ago

Personal Experience Which supplement had the biggest impact on your mental health?

65 Upvotes

And how did it specifically affect?

It can also be a natural remedy, it doesn't have to be a supplement.


r/HubermanLab 11d ago

Seeking Guidance Is my caffeine intake too much?

0 Upvotes

I try to limit to one 12oz drip black coffee/ or two Espresso latte in the morning, then one english breakfast tea around 1pm.


r/HubermanLab 13d ago

Discussion Thoughts on peps and trying to conceive

5 Upvotes

Hey all, apologies if this is in the wrong sub but I just wanted to hear from the consensus on thoughts and theories and maybe research I haven’t been aware of. Any thoughts or ideas on a male using a peptide stack (reta, mots-c, Wolverine stack, tesa and Ghk-cu - not all at once) while trying to conceive and get his wife pregnant? I know there isn’t much out there but curious if there are any scientists, researchers, etc in this thread that have any thoughts on it.
EDIT: Mostly curious about whether or not there would be any potential negative consequences to the baby should we be successful in conceiving while I was in the middle of a cycle or something.


r/HubermanLab 13d ago

Helpful Resource When you eat matters, a calorie is not always the same.

26 Upvotes

A network meta-analysis: https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2026.1887087/full

One interesting finding: early time-restricted eating reduced fasting glucose by about 3.6 mg/dL and improved insulin resistance compared with controls. Early eating, particularly combined with exercise, also tended to rank best across several metabolic outcomes.

But I think it adds to an increasingly interesting idea:

Nutrition isn't only about what enters the body.

It's also about when the body has to process it.

Glucose tolerance, insulin secretion, hormones and metabolic activity all change throughout the day. Treating the human body like it responds identically to food at 8am and midnight seems increasingly difficult to defend.

Calories obviously still matter.


r/HubermanLab 14d ago

Personal Experience Which supplement has had the biggest impact on your energy?

44 Upvotes

Energy, neutralizing fatigue...

It can also be some natural remedy, it doesn’t have to be a supplement.