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Longevity reviews backed by real data

Every product on this site is tested against 600+ nights of dual-device biometric tracking, quarterly blood panels, and 41 biomarkers. No sponsored opinions — just measured results.

Read the Flagship Review View My Data

#97 Don't Die Global Rank

23.5 Functional Age (Actual: 33)

46 VO2 Max (+31% in 14mo)

0 Biomarkers Out of Range

88 Days WHOOP Data

594 Nights Oura Sleep Data

Top 1% Don't Die (9,628 Users)

62 Day Perfect Streak

41 Biomarkers Tracked

3 Devices Simultaneous Tracking

Live Data

Biometric Snapshot

Don't Die Rank

#97

of 9,628 (Top 1%)

Functional Age

23.5

9.8 yrs younger

WHOOP Age

27.9

Aging at 0.7x

Oura CV Age

Trending Down

VO2 Max

+31% in 14mo

Resting HR

bpm (elite)

Avg HRV

92.5

ms (WHOOP)

Biomarkers

0 out of range

Full Interactive Dashboard →

Latest Reviews

Data-Backed Analysis

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WHOOP 4.0 vs Oura Ring Gen 4: 88 Days Wearing Both

Real HRV, recovery, sleep, and strain data from simultaneous daily wear. My actual numbers, not spec sheet comparisons.

March 2026 16 min read

Supplement AG1 Review

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Day 0, Day 45, Day 90 blood work. What moved, what didn't, and why my $75 stack outperforms it.

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Coming Soon VO2 Max

How My VO2 Max Improved 31% in 14 Months

From 35 to 46 ml/kg/min. The exact training changes, tracked week by week through Oura.

Coming April 2026 12 min read

88-Day Findings

What My Data Actually Showed

-18.2%

Recovery penalty from alcohol

45% AVG VS 63.2% SOBER

-7.7%

Recovery penalty from late eating

57.1% AVG VS 64.8% CLEAN

1.4hr

Nightly sleep deficit identified

6.9HR ACTUAL VS 8.3HR NEED

+8.2ms

HRV improvement over time (Oura)

74.4ms → 82.6ms ACROSS 594 NIGHTS