The Person Behind the Data

My name is Zach. I'm 33, married, dad to a toddler, and I live in the Dallas area. By day I'm a Director of Operations at a national sports retail company — I run ops across seven locations, which means my brain is wired for systems, KPIs, process optimization, and making decisions from data instead of gut feelings.

That same operating system runs my health.

The Numbers

I don't expect you to take my word for anything on this site. Here are the receipts:

Platform	Metric	My Data
Don't Die	Global Rank	#97 of 9,628 (Top 1%)
Don't Die	Functional Age	23.5 (Actual: 33)
Don't Die	Perfect Streak	62 days
WHOOP	WHOOP Age	27.9 (Aging at 0.7x)
WHOOP	Avg HRV	92.5 ms
WHOOP	Resting HR	49.5 bpm
WHOOP	Peak Recovery	98%
Oura	CV Age	25 (Trending Down)
Oura	VO2 Max	46 ml/kg/min (+31%)
Oura	Readiness Avg	76/100
Blood Work	Biomarkers	41 tracked, 0 out of range

Functional Age Breakdown

Every metric on the Don't Die app is measured, not self-reported:

Test	Score	Age Difference
Pushups	50 reps	15.3 years younger
Grip Strength	148 lbs	8.3 years younger
Reaction Time	260 ms	15.3 years younger
One Leg Stand	55 sec	15.3 years younger
Sit and Rise	10/10	13.3 years younger
Sit and Reach	17 in	11.8 years younger
Waist-to-Height	0.55	+0.6 years (my weak spot)

What I Do

Training: PPL rotation 3-4x/week at Crunch Fitness. Average lifting session is 59 minutes at strain 10.2. Golf once a week. Active 6.4 days per week on average. 6'2", 215 lbs.

Supplement Protocol: Longevity Mix (daily), Creatine 5g (daily), Men's One A Day, EVOO 3-4x/week, Pre-Workout (Woke AF) before gym. No caffeine after 4pm. Mediterranean diet. Intentionally boring — built to compound over years, not abandoned under stress.

Tracking: WHOOP 4.0 and Oura Ring Gen 4 worn simultaneously every single day. Both sync to Don't Die. 23 health metrics tracked weekly. Quarterly comprehensive blood panels.

How Reviews Work

Step 1 — Baseline. Before a product enters my routine, I snapshot current biometrics: HRV trends, sleep architecture, recovery averages, and relevant blood markers.

Step 2 — Minimum 30-day trial. No "first impression" reviews. Most products get 60-90 days. Some devices I've tracked for over a year.

Step 3 — Data comparison. Pre vs post across WHOOP recovery, Oura readiness, sleep scores, and blood panels when applicable. If I can't measure it objectively, I note it as subjective and label it clearly.

Step 4 — Honest write-up. If a product doesn't move the needle, I say so — even when the affiliate commission is significant.

Affiliate Disclosure

This site uses affiliate links. When you click a product link and make a purchase, I may earn a commission at no cost to you. This is how the site sustains itself.

What I won't do: recommend a product because the payout is high, hide negative findings, or review something I haven't personally used for a significant period. My credibility — and my name — are attached to every recommendation.

Contact

Email: zach@evolvinglongevity.com

Don't Die: @zachczem

Newsletter: The Protocol Weekly — Sundays