Sleep was the lever. Nobody had measured it before.
Daniel
47, engineer
61 → 84
Deep sleep, min per night
Longevity clinic · Madrid
Know what your body
is actually doing.
A baseline of 120+ biomarkers, read by a physician. Then a plan, and a re-measure to prove it worked.
What we measure
Everything that moves, measured.
Seven systems, one morning, one baseline. Then the same tests again, so change is a number and not an impression.
Blood panel
64 markers
ApoB
78
mg/dL
Optimal
HbA1c
5.2
%
Stable
hs-CRP
0.6
mg/L
Optimal
Ferritin
212
ng/mL
Review
Your baseline
Reading 7 systems
One baseline reads them together.
Heart, metabolism, hormones, inflammation, muscle and bone, cognition and sleep, measured in one morning.
Body composition
DEXA scan for fat, lean mass and bone density, by region, in eleven minutes.
Fitness and sleep
VO2 max on the bike, grip strength, and a seven night sleep study at home.
Member stories
Their numbers, their words.
Three members, three primary markers, and what changed between the first morning and the last.
Sample report
Your results, read for you.
Every marker in range or out of it, and the three that matter most. The full report adds your physician’s note. A real layout with an invented member.
KERNO REPORT
Member 0427
Baseline, 12 Oct 2026
Reviewed by Dr. Elena Ruiz
SUMMARY
117
of 120 markers in range
THREE TO ACT ON
ApoB
104
mg/dL
Target below 80
VO2 max
34.1
ml/kg/min
Target 40 by month 6
Fasting insulin
9.8
µIU/mL
Target below 7
All 120
Heart 18
Metabolic 22
Hormones 14
Inflammation 9
Fitness 6
MARKER
VALUE
STATUS
Showing 5 of 120 markers
Clause 7, signed
7
Sold to members
00
supplements, ever
No supplement shop
No prescriptions for performance
No diagnosis by app
Signed by
Dr. Elena Ruiz
Boundaries
What we do not do.
A clinic is also defined by what it refuses. These three are written into our contracts.
01
We do not sell supplements.
No shop, no stack, no affiliate codes. If a supplement has evidence for your numbers, we name it and you buy it anywhere.
02
We do not treat acute disease.
Kerno is prevention and follow-up. Anything urgent goes to your GP or a hospital, with our data attached.
03
We do not promise extra years.
Nobody can measure that yet. We promise the numbers, measured properly, and an honest reading of them.
If you need a doctor today, go to a hospital, not to us.
Your physicians
Four doctors. Never a call centre.
Every member has one named physician who reads every result and answers every message. We cap each list at 150 people.
MEMBERS
MEMBERS
MEMBERS
MEMBERS
Membership
One price, all year.
No add-ons, no supplements, no surprise invoices. Cancel any month after the first three.
€1,900
once
One full assessment and a written plan. Good if you want the data before you commit.
Blood panel, 62 markers
DEXA and VO2 max
90-minute physician consult
Written 12-month plan
Most members
€390
a month
Everything in Baseline, then a year of retests, coaching and a physician who knows you.
Baseline included in month one
Four blood draws a year
Physician messaging, one working day
Training and sleep plan, adjusted quarterly
Annual DEXA and VO2 retest
Membership per day
€12.80
a day
Kerno membership
€12.80
Private health insurance, 45+
€6.10
Boutique gym
€4.90
Two flat whites
€7.20
Late diagnosis, avg. day in hospital
€940
Hospital figure: average cost of an inpatient day in Spain, 2024. Bar cut to fit.
Measure early
Act on data
Check again
FAQ
Questions, answered plainly.
The six we hear most in the first call.
Can’t find your answer?
Write to us and a clinician replies within one working day.
