Impressive Biological Age Reductions with Rapamycin (anecdotal)

We’re getting reports from an increasing number of people who have seen significant benefits in terms of pre/post testing of biological age (reduction measured by epigenetic tests or Levine Phenotypic Age calculations) which, while still just anecdotal, reinforces the idea that rapamycin has some significant anti-aging effects in humans, just as it has had in every other organism its been tested in the past two decades. For more examples and discussion on this topic see our thread here: A Friendly, Biological Age Reduction Competition?

Following are the instances I have heard of, or members who have reported the results to me.

A 3 year biological age reduction from 3 months of rapamycin use.

So apparently a 3-month treatment of 4mg/week of rapamycin and 25mg/day acarbose shaved off 3 additional years off my phenotypic age.

Well-documented and tested and described in this post here: My Lab and Fitness Results After 3 months of Rapamycin Use

Another example:

Another user reports:

I recently got my second Levine bioage result since starting rapa in early October, 2021. I also took a look at my data for the last five years to see any trends and note the variability. The data was sometimes incomplete (damn 2020), so I interpolated between tests. I also held fasting glucose constant because mine is highly variable day-to-day, which makes the results only valid as a comparison over time. Result: 4 months after starting rapa, by bioage was reduced almost 5 years, and maintained that reduction at 7 months. (Source this post here)

Recently, a doctor who emailed me reports:

I have been using rapamycin for several years and now opening my practice to local patients as well as telemedicine patients. My epigenetic test recently had me 18 years younger than my stated age (TruDiganostics) using the rapamycin.

From this post by this member of our forums:

With my recent labs on 5/3/22 (May 3, 2022), my biological age using this Levine formula is 35.31 years. I will turn 58 on June 12th. I have taken rapamycin for 1.5 years and currently on 20 mg every two weeks dose.

And another case by a different person:

Lower biological age measurement:
Has anyone lowered their levine age or through Rapamycin? yes, had blood tests and epigenetic age test done before starting rapamycin and after. Took rapamycin at 6mg/week for 4 months. 13 years improvement by Levine calcs as well as epiagingusa test.

Another Bioclock example:

"Been taking rapamycin since Dec 2019 (2 years). Started at 5 mg once a week. First half of this year was at 10 mg/ week and second half took 15 mg every two weeks
Results to date:

  • much higher eGFR
  • lower creatinine
  • lower RDW
    using Morgan Levine calculator I dropped from a bio age of 66 in 2019 (when I was 66) to 53 in June 2021 (68.5)".
    Change to these bio markers occurred within two months of starting 5 mg/ week of rapamycin but have not changed with higher doses.

From our member @Uppereast69 :

… my calculated bio age was 40 years younger.
I’ve been tracking those biomarkers for at least five years and used a different formula for biological age. The gap has definitely grown since starting rapamycin. My thought is that those estimators are heavily influenced by two things: overall inflammation and the health of the cardio system. I have an extremely low CRP score, which I put down to 1. good genes 2. lifelong runner 3. ectomorph with BMI of 20 4. 31 inch waist (believing that belly fat is where the inflammation tends to accumulate) 5. supplements such as beta-glucan to reduce inflammation 6. making sure the gut is healthy with LOTs of fiber feeding the bacteria there 7. frequent saunas (see dr. Rhonda Patrick on saunas) and 8. cold water therapy a la wim Hof, which challenges the immune system.I eat more or less low-carb and my blood chemistry is good (e.g. TG 70 HDL 71) After a piece in the Financial Times many years ago about why London bus drivers had much higher incidence of heart disease than the ticket takers who were on their feet all day, I bought a stand up desk and try not to sit much during the day. Oh, and i have a dog who requires long walks.

And this all seems to confirm the latest information from Dr. Morgan Levine at Yale:

See the good news below from Dr. Morgan Levine (creator of the Levine Phenotypic biological age calculation)… on Rapamycin’s impact on epigenetic measures of aging… I have attached the Excel Spreadsheet for doing your own Levine Phenotypic Age calculations at the bottom of this post (from Mike Lustgarten’s page) developed by Nick Engerer.

3ba41-dnamphenoage_gen-1.xls (31.5 KB)


Has anyone compared results of their genome sequencing with those of epigenetic clocks before/after rapamycin therapy? It would seem that if these tools are accurate, they would both predict the same age or very close to the same age.

1 Like

Hmmm. There is are differences between the spreadsheet that is on Mike Lustgarten’s page and the one at the bottom of the post.

First, the gen-1 version that is attached to this post - the conversion factor in cell B7 of 10 does not convert mg/dL into g/L, that would be 0.01. In the version on Mike Lustgarten’s page it has the albumin data in as g/dL and this would need a conversion factor of 10. My own blood tests give me serum albumin in g/L so I think somehow a mistype has happened in cell B6.

Second, there is a difference in a formula in cell D17 that calcs the Ptypic Age - the original has a division of 0.090165 at the end, whereas the gen-1 was a division of 0.09165 at the end.

Are we to assume that the gen-1 version corrected the calc in D17 for Phenotypic Age, but somehow added the error into cell B6?

1 Like

Also, the calc in cell C17 for MortScore uses the 120 from the ‘months’ box. If a constant of 120 was required then I imagine it would just be in hard typed into the formula along with so many other constant numbers that are in the formulas, so this leads me to think that the result for ‘months’ in D13 should be a variable. The fact that this is worked out from the number of years in box B13 implies that it’s maybe the number of years in B13 that should be an input variable. Very strange spreadsheet design if it isn’t.

1 Like

Michael - interesting - thanks for noting this. I got the spreadsheet from Mike’s webpage - and later I learned that it was actually a spreadsheet from Nick Engerer. Perhaps the spreadsheet has been updated since I initially got the file. I will reach out to Nick Engerer and try to get more information. I posted this previously:

I have attached the Excel Spreadsheet for doing your own Levine Phenotypic Age calculations at the bottom of this post (from Mike Lustgarten’s page) developed by Nick Engerer .

I don’t suppose anyone can explain what phenotypic age actually means :smiley:

“Based on routine clinical chemistry biomarkers, we previously developed a novel aging measure, Phenotypic Age, representing the expected age within the population that corresponds to a person’s estimated mortality risk”


Expected age corresponding to estimated mortality risk. My brain can’t figure out what that actually means. Does it mean it’s an estimate of what age you’re going to die?

Here is the research paper by Dr. Morgan Levine’s group at Yale

Full Research Paper PDF: A new aging measure captures morbidity and mortality risk across diverse subpopulations from NHANES IV: A cohort study

Abstract Below:

I’ve read those already, or certainly the start. That’s where I pulled my quote from. I was hoping someone could explain in it normal English.

“representing the expected age within the population that corresponds to a person’s estimated mortality risk” - does this mean expected age of death? Maybe I’m not understanding the term ‘expected age’? An age that corresponds to a risk - what does that even mean???

Is everyone just going with if the result is lower than your actual age then :+1: :+1: :+1: :+1: :+1:

Michael - all these tests are really in their early stages and have not been directly tested to see their actual predictive abilities in lifespan tests - so I see them more as general trendline assistants and really what I use this specific one for is to see how they vary test to test. I do blood tests every few months and see how I’m doing with working to lower the phenotypic age calculation.

If the calculation is lower after a test compared to the previous test - I take that information and review what I’ve been doing to maximize health - and then make plans for the next few months.

My Phenotypical age calculation is about 15 years lower than my chronological age - but what exactly does that mean? I have no idea. This is why I don’t believe in paying for any of these epigenetic tests or biological Age tests. We really don’t know what they are actually testing, and how it relates to actual lifespan. Thus - I use the Levine Phentypic test because its free and seems to be pretty good - see the Mike Lustgarten discussion on it.

Here is a good thread I’d recommend reading on this topic - on twitter, started by Matt Kaeberlein:

More details here:

So i typed in my values for in the excel sheet, and I am a little confused

Def. Albumin Creatinine Glucose CRP Lympocyte Mean Cell Volume Red Cell Dist Width Alkaline Phosphatase White Blood Cells Age
Input 4.8 0.99 98 0.55 36.7 89 11.8 65 5.2 24
Units mg/dL mg/dL mg/dL mg/L % fL % U/L 10^3 cells/mL years
Conv 10 88.4 0.0555 0.1
cInput 48.00 87.5160 5.439 -2.9004 36.70 89.00 11.80 65.00 5.20 24.00
cUnits g/L mmol/L mmol/L Ln(mg/dL) % fL % U/L 10^3 cells/mL years
Wts -0.0336 0.0095 0.1953 0.0954 -0.012 0.0268 0.3306 0.0019 0.0554 0.0804
Terms -1.6128 0.8314 1.0622 -0.2767 -0.4404 2.3852 3.9011 0.1235 0.2881 1.9296
t 10 years 120 months
g 0.0076927
b0 -19.9067
LinComb MortScore Ptypic Age est. DNAm Age est. D MScore
Results -11.7155 0.002 14.62 14.56 0.002
![image 690x263](upload://26FWrUEzHwHZx3gKWCgYdXaUy9J.png)

It tells me my Ptypic age is 14.62 while my biological age is 24, is this good for me being so young? just a little confused
Also wanted to know any suggestions to get my glucose down?

1 Like

After eyeballing the graph of phenotypic age vs actual, the model appears to underestimate age for those in their early 20s.

Hmm, any thoughts on why this may happen?
Also do you have any advice on getting my blood glucose levels down?

Their model was a best linear fit for broad age ranges, but there were poorer fits within subsets of those ranges.

On glucose: this number can have high variability day-to-day. It might also be higher if your blood draw was long after you woke up. Check your Ha1c to screen for pre-diabetes. If that’s good, you can reduce fasting blood glucose by not eating not large evening meals, not eating close to bedtime, increasing fiber consumption, exercising daily, and getting adequate sleep (which aids insulin sensitivity).


I just received results from an epigenetic saliva test. My age has gone down 6 years since taking Rapamycin! Now I am only 12.25 years older than my real age instead of 18.5! Both tests were done at the same company. They were done 8 months apart.

My last blood test using puts me at 19 years younger than my biological age. That result was pre Rapamycin though. All of my bloodwork results from over the years are consistently 19 years younger using It is very consistent so i am hoping it is very accurate!

Seriously though, with varied results like this, its hard to know if you are doing the right thing. I honestly think most of these aging tests may not be that reliable.


Interesting. How long a period was this between tests, and how long had you been taking rapamycin?

Any other changes in your longevity protocol or in your life more broadly (e.g. high stressors, diet, exercise, etc.)?

1 Like

It was eight months in between tests. I took Rapamycin for 2 months and then had a 2 week rest period before i submitted the test.

One major caveat - I had made other supplement changes in that time period as well, so it may not all be due to the Rapamycin. However Rapamycin was probably the biggest change I made. My sleep quality may have improved a bit as well during the past 5 months prior to the test.

However, i don’t feel like i am older. I feel like i am 28. Based on this self analysis, it seems may be the more accurate of the two tests.

Also, when i had my annual physical at the hospital, I was in great shape according to the report. Although i could lose a few pounds.

I need to go to the gym now…


Congratulations! It’s really impressive.

1 Like

Still a lot more to go if the epigenetic test is to be believed. But yes, a step in the right direction. Now I just have to figure out what I can do about the rest. Probably drop weight and get better sleep as I don’t smoke or drink.

I am also hoping the epigenetic test is flawed. :sweat_smile:


DunedinPACE is the epigenetic metric to use that’s most correlated with health. Also GrimAge (which is still not reported by TruDiagnostic or most epigenetic tests)

There are many people (including Mike Lustgarten) who do not have lower Horvath epigenetic ages but much lower Levine Phenoage values. Levine Phenoage (blood test stuff) is MUCH more malleable than the epigenetic (or genetic) stuff - thus I’m only really impressed with “age reversal” on the “epigenetic axis” (b/c this is much harder to change). Or SomaLogic proteomic/transcriptional age, but almost no one gets tested on those axes.

Also Johnny Adams of GRG has a much lower Levine Phenoage than Horvath epigenetic age. Bryan Johnson also has slightly accelerated rather than reduced epigenetic age (though after he started blueprint, he recently lowered his with rapamycin+metformin, which IS an encouraging sign). I know Evelyne Bischof from Shanghai says that some ppl who test aging interventions ACCELERATE their epigenetic clocks through interventions.

Note that Levine Phenoage methylation clock (which uses BOTH phenoage and methylation clock) is NOT the same as Levine Phenoage JUST from blood measurements alone. Omics clocks (like Wyss-Corey proteomics) that measure loads of other factors are very relevant, ESPECIALLY in CRONites who are already huge outliers from people fattened on standard Western diets. Many CRONites have perfect blood tests just from the standard blood panels but that still doesn’t prevent them from being aged in some way (and it’s very obvious they are just by talking to them)

NO ONE I know who practices CR seems to have their age reduced at a level ANYWHERE as impressive as that of Lure Hsu, or even David Sinclar, for that matter…

Most of my biomarkers that feed into Levine Phenoage are younger now than they were in 2014, which I guess mean that rapamycin reduced my inflammation+oxidative stress (that and my diet is healthier now - no more calorie-loaded Asian parent food). That still doesn’t change what happens to my epigenetics or total integrated cellular damage/lipofuscin accumulation/total DNA breaks. Some forms of aging seem to happen in “pulses” (esp the form that causes from DNA damage, where there are no consequences for a LONG time… until a threshold of DNA damage happens)

Also I know of one person who got an epigenetic age reversal of ~20 years after exosome therapy (they don’t have dramatic effects in most people) but still appears sickly/not great

1 Like