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Health headlines, double-checked.

I read the studies behind the health claims you keep seeing, and I take my own blood tests twice to see how much the numbers move on their own. I share every result, even the boring ones.

Example only, not my results
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2 blood tests, two weeks apartSame test, nothing changed in between.

Why I test twice

Take the same blood test two weeks apart, change nothing, and you'll still get two different numbers. That's normal: results bounce around a little on their own.

Before I believe any change, I find out how much mine bounce. If a later result moves less than that, I won't count it as a change, and I'll say why.

Same test, nothing changed, two different numbers.
Example bounce figure Test 1 and test 2, two weeks later, sit at slightly different heights. The gap between them is the normal bounce. A later result that lands inside that band is not counted as a change. No values on the axis. Example only, not my results. normal bounce test 1 test 2, two weeks later a later result Example only, not my results

How I keep it fair

  • Same arm
  • Same time of day
  • Nothing to eat beforehand
  • Two weeks apart

If anything else changes between tests, I'll tell you.

What's in the weekly email

One email a week. Here's the shape of it.

Sample email layout
Twice PreciseWeekly email

Welcome: health headlines, double-checked

You get

  • My latest test results, all of them, even the ones that didn't budge.
  • The week's video.
  • One health headline, checked against the study behind it.

No medical advice. Any paid link says “paid link”.

The weekly email

You won't get

  • Medical advice. I'm not a doctor.
  • Scary or miracle claims about what a test “found.”
  • Sneaky ads. Any paid link says “paid link,” and the email tells you up top.

What things cost

I compare at-home blood tests by price per result, and NMN supplements by price per gram. I check the prices by hand.

Starting soon

Checked so far
0 of 14
First prices posted
28 Oct 2026

8 blood tests by price per result · 6 NMN supplements by price per gram

See the price tracker

Who's behind this?

Not medical advice. I'm not a doctor.

I'm one person with a microphone. I'm not a doctor, and I don't pretend to be. I read the research, test myself, and share what I find. I stay off camera, so you'll only hear my voice.

More about me

How this is paid for

0paid relationships today

Right now, nobody pays me. Later, I may earn a small commission from some links. Each one will say right next to it.

Read the disclosure
Twice Precise
YouTube · weekly email · price tracker

The method, in five words.

  1. Read
  2. Tested
  3. Twice
  4. Shared
  5. Double-checked
Twice Precise I read the study. I test twice. I share every result.

Get health headlines, double-checked, every week.

One email a week: my newest numbers, one headline checked, and the week's video. Free.

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