Dr Naras Lapsys
The Bridge · PreventionPreventionClinical longevity medicine at Chi Longevity — testing across every system, then turning what is actionable into a plan someone will actually follow.
Level 1 · BasicsLongevity BasicsNutrition, muscle, sleep and training — the behaviour change he says a clinic lives or dies on.
Live Beyond · A Great Mind on the Quest

Naras
Lapsys

Chief Clinical Officer, Chi Longevity
Nutrition, body composition & prevention · Singapore

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Levels of Longevity Map Naras explores

Dr Naras Lapsys is one of 100+ experts in the Live Beyond Project — a father & son quest for longevity.

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Chi Longevity
Chief Clinical Officer
Scientist → dietician
Then the clinic
−15 years
His own glycan age
Singapore & ARDD
Where we met, 2024
Who is Dr Naras Lapsys

The man who makes it stick

The first thing he did, when the camera started rolling in Singapore, was correct his own job title. Marek called him Chief Science Officer. “Clinical officer,” he said. “Chief clinical officer.” It is a small moment that turns out to explain him: Dr Naras Lapsys is not at Chi Longevity to publish. He is there to get a person from where they are to where they need to be.

He came to it the long way round. “I was a research scientist for a long time,” he says. “I was then a consultant dietician for many, many years.” Now, at the clinic, “my role is to oversee the client journey, and to make sure — or to help — the clients get where they need to go.” Every test result lands first in what he calls a high-touch multidisciplinary team meeting, “where all the minds get together, and then we decide upon the interventions that are most appropriate for our client.”

His conviction is unfashionable in a field selling molecules: a longevity clinic is judged not by what it measures or prescribes but by whether the person in front of you actually changes. “It’s very easy to take a pill,” he says. “It’s very easy to go somewhere and be given treatments and sit back and relax and be infused this and do everything else, and then you go back to your usual life. Of course, supplementation and medications are going to make a difference here too, but people have to do the work.”

And the reason he started was his father. Naras married late and was going to be an older dad. “Son, you’re gonna need to have children soon,” his father told him, “because you’re gonna be a very old dad.” He thought about it and came to a different answer. “Well, actually, no — what I need to be is a very fit and healthy older dad, and so I’d better get on to doing that soon.” Back then, he points out, longevity wasn’t even a concept. He was already living it.

Prevention Nutrition Body composition Behaviour change Chi Longevity
Dr Naras Lapsys with Andrea Maier and Marek at ARDD, Copenhagen
ARDD, Copenhagen · 2024

Singapore, then Copenhagen

Where we met

We first sat down with Naras at Chi Longevity in Singapore in March 2024, where he walked us through what a longevity clinic is actually for. Five months later we met him again at ARDD in Copenhagen — this time with Professor Andrea Maier beside him, and Marek’s own results on the table between them. The second conversation is the rarer one: not a clinician explaining a philosophy, but a clinician reading a real person’s body out loud.

Chi Longevity
Singapore, March 2024
Where a clinic earns its keep.
ARDD
Copenhagen, August 2024
Marek’s results, with Andrea Maier.
Test, don’t guess
His rule
Then retest, and change what you can.

“It’s very easy to take a pill … and then you go back to your usual life. Of course, supplementation and medications are going to make a difference here too, but people have to do the work.”

— Dr Naras Lapsys, Chi Longevity, Singapore
In his words

People have to do the work

“Ultimately the success of a clinic is gonna come down to their clients or their patients being able to make change.”

Dr Naras Lapsys · Chi Longevity, Singapore

Test, don’t guess.

Dr Naras Lapsys

You need to practice what you preach — otherwise, how is anybody going to respect you unless you walk the walk yourself?

Dr Naras Lapsys

Even though you might be bulletproof as far as you can look and feel and see, the truth of the matter is what’s going on underneath.

Dr Naras Lapsys

If you do the work, the clock’s moving.

Dr Naras Lapsys

Something radical is on the horizon, is coming. And for many of us, we’re going to be alive to experience it. But I don’t know what that is.

Dr Naras Lapsys

We don’t have gold standards for many things yet … this is a new field where I think we’re still feeling our way somewhat.

Dr Naras Lapsys
In his own words

Straight from the interview

Three ideas Naras keeps returning to.

Test, don’t guess

He audits a supplement shelf the way an accountant audits a ledger — and cuts. Going through Marek’s, he found B12 arriving from three products at once. “We rationalized your supplements … we de-prescribed some.” The loop he wants is simple: test, change, retest.

“Test, don’t guess.”

Copenhagen · from the interview

Muscle is heart medicine

He reads inflammation across systems rather than off one number — glucose, insulin, visceral fat, cardiorespiratory fitness. Then he follows the chain: a little more lean muscle improves metabolic health, and that plays back into the cardiovascular system. Train at about 80% effort, two reps in reserve.

“There is room for improvement. It’s actionable.”

Copenhagen · from the interview

A clinic is judged on change

Not on its machines, not on its prescriptions — on whether the person walks out and lives differently. He is blunt that this is the hard part, and that infusions and pills are the easy part. He also practises it: his own glycan age came back about fifteen years below his own.

“People have to do the work.”

Singapore · from the interview
Connect & follow

Explore Naras’s world

Professor Andrea Maier
Beside him at ARDD — and at Chi Longevity
→
The Longevity Map
Where the Bridge of Prevention sits
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Dr Naras Lapsys is Chief Clinical Officer at Chi Longevity in Singapore. This page shares the ideas from his two Live Beyond conversations — one at the clinic in March 2024, one at ARDD in Copenhagen that August.

From the conversation

Dr Naras Lapsys, in his words

Video interview

The video interview is coming. Recorded interviews go live after the launch of the film & series Live Beyond.

Two conversations: Chi Longevity, Singapore, March 2024, and ARDD, Copenhagen, August 2024 — the second with Professor Andrea Maier beside him. Passages from both:

Why he started — his father’s line

Naras Lapsys“My father said to me: Son, you’re gonna need to have children soon because you’re gonna be a very old dad. And I thought to myself, well, actually, no — what I need to be is a very fit and healthy older dad, and so I’d better get on to doing that soon. Back then, longevity wasn’t even a concept, but I was already thinking that that’s what it needed to be, and that really was the spark that sort of guided me in this direction.”

What a clinic is really for

Naras Lapsys“Ultimately the success of a clinic is gonna come down to their clients or their patients being able to make change. It’s very easy to take a pill. It’s very easy to go to somewhere and be given treatments and sit back and relax and be infused this and do everything else, and then you go back to your usual life. Of course, supplementation and medications are going to make a difference here too, but people have to do the work.”

Looking under the hood

Naras Lapsys“You’re lean, you’re fit, you’re healthy. But when we look under the hood, and then we start to look at the biological samples that we took — all of those different functions and all the systems that we analysed, and took your genome and looked at your microbiome — we can see some interesting stories that were starting to show.”

The supplements you didn’t know you were taking

Naras Lapsys“We rationalized your supplements. We looked through everything. We de-prescribed some. People often don’t realize that they’re getting their B12 here, here, here from all of these different supplements that they’re taking. Now they’re taking significantly larger amounts.”

How hard to train, and why

Naras Lapsys“Exercise physiologists have got very strong data. There’s good evidence behind the type of resistance training, particularly in men, with the level of effort that you put. So when people train at what’s called 80% effort, or two reps in reserve, that type of training program, which has a building effect, can have significant impact on testosterone levels and again on muscle synthesis.”

Naras Lapsys“Testosterone in men is a steady slow decline. Growth hormone peaks in the 20s and then falls, and then precipitously falls. So that’s already happening. And you have to do things over and above that.”

Three things, one budget

Naras Lapsys“If my sleep is compromised, then my exercise is compromised. And if my work, I’m not doing enough, then that becomes compromised. And so it’s always, for me, just working and moving amongst those three.”

Start before you feel it

Naras Lapsys“Even though you might be bulletproof as far as you can look and feel and see, the truth of the matter is what’s going on underneath actually will benefit you if you are doing the right things when you’re early.”

Naras Lapsys“What you’re doing is setting an example for your son, so that he ends up embedding healthy habits right from the start, and he doesn’t pick them up when he’s 30 or 40 — because actually, without even thinking about it, it started at a young age.”

Where the real science happens

Naras Lapsys“We knew that the things that were going to really make a difference was something serendipitous that was going to occur along the way, or an unexplained result that was going to send us in a completely different direction — and that was actually real science.”

An honest answer about what comes next

Naras Lapsys“I’m an older person. I kind of liken it to life before the internet, because I was an adult before the internet became, and I’ve experienced it. And so I think we’re on another point like that right now. I think none of us have any idea of what’s in store. Something radical is on the horizon, is coming. And for many of us, we’re going to be alive to experience it. But I don’t know what that is.”

More passages from the two full interviews will be published here.

Continue the quest

More minds on the quest

Dr Naras Lapsys sits on the Bridge of Prevention on the Longevity Map — mindset, purpose and love. Explore the rest of the cast on the People page.

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