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Bryan Johnson reveals sleep is the most important thing for slowing down aging “When you don’t sleep well your prefrontal cortex goes offline and your willpower plummets. So the next morning when you can either eat the croissant or the bowl of berries, you’re going to eat the croissant... show more
194,627 views • 7 months ago •via X (Twitter)
33 Comments

Bryan is 100% right — and this is one of the most underrated truths in longevity. Sleep isn’t just “recovery.” It’s the master controller of willpower, decision-making, and every other healthy habit. When you don’t sleep well, your prefrontal cortex goes offline. That’s the part of your brain responsible for saying “no” to the croissant and “yes” to the berries. Suddenly you’re running on pure impulse and the next day you’re even more tired… creating the perfect downward spiral. From a longevity perspective, consistent deep sleep is the highest-ROI habit because it protects: Brain health (glymphatic clearance of toxins) Hormone balance Muscle preservation Inflammation control Everything else (diet, training, supplements) works 10x better when your sleep is dialed in.

People say they want discipline. But they negotiate with sleep. Discipline isn’t built in the moment of choice. It’s protected the night before. Willpower is finite. Structure is renewable. Guard the system that guards your decisions.

It's the same shit every time. Eat Healthy. Exercise. Sleep well. Have good relationships. Don't do unhealthy stuff (smoking, etc.) These guys have nothing new to tell. The ROI on most products/protocols is low when you've optimised the above stuff.

Most people optimize everything except recovery.

Who is Bryan? He is an IT Guy, just like me, with 0 scientist skills or God given gift. This is what he feels and what his theory is, but it is not the truth. How do I know? I've been sleeping not more than 4 hours for over 20 years now, not chest thumping about it but I have my personal reasons. Yet I never get through the dilemma he metions and my will power is the one that keeps me going. So I can say, and I disagree about what he is talking here. Everyone can have an opinion, but don't put it in public domain and try to state is as a Fact. It is not a Fact, it is a mere opinion.

Feat. @bryan_johnson @fullsendpodcast

yeah sleep builds the capacity that makes willpower possible. without it, behavior runs on empty and defaults to whatever pattern requires least energy.

bryan is literally looking young as FUCK now, what the hell... Bro looks 25.

@grok explain to this gentleman why genes and luck are far more important

My emotional intelligence and emotional constraint also plummets on lack of sleep. I wonder if this is why everyone is always so on edge and easily triggered?

Eating a croissant is bad now ? We might as well climb into our coffins.

me watching this as a mom 🤓

"you’re going to eat the croissant even though you don’t want to and you know how it will make you feel." ? Its wonderful! Sitting in a cafe in the alps with a bunch of old people, expresso, croissant and a smoke. Such a great combo. Great vibes.

Respect for reminding us

This is well known. He’s not contributing anything here. He’s just a self aggrandizing narcissist.

Yup

Sleep isn’t recovery it’s the nightly board meeting where your future self argues your impulses into submission

A cat is an animal and sleeps more than a human, tf is this bs.

As chronic insomniac i am gonna kms for this freaking disease that affects everything

Improving sleep quality is essential to Alzheimer's prevention.

Bad sleep does not just make you tired. It makes you a completely different person. Less patient. Worse decisions. Lower standards for yourself. Every bad habit becomes easier to choose. Every good habit becomes harder to start. And the cruel part is you do not even notice it happening. You just wake up feeling slightly off and spend the whole day wondering why you cannot get it together. The discipline you are so proud of is mostly just a byproduct of how well you slept last night. Fix the sleep. Everything else becomes easier.

now I get why everything goes wrong after a sleepless night

;o)

Prioritizing sleep sounds like a really smart move for feeling and being your best!

Are croissants bad?

Live Your live deliberatly, don’t let the fear of death conditions Your life too much (like in this guys life) Death is a part of life, those not willing to accept that fact are at the back of the line of understanding and wisdom and You shouldn’t be taking their advice about life.

this is is best take @grok provide me all science on this

Willpower's like a battery, and sleep is the charger!

People still listen to this fucking grifter?

So insomnia is basically a willpower bankruptcy spiral

This explains why so many bad decisions are usually taken after 2 am.

Not just that. When i don't sleep well I'm extra hungry the next day

A billionaire spent millions of dollars to discover what your grandmother told you for free every night at 9pm. The entire optimization industry exists because people would rather buy a system than just lie down.
