Ranked only against the same measurement, in the same unit. See the positive, neutral, opposite-direction and still-collecting evidence before deciding what is worth your own test.
How to read this
Phoenix research is longitudinal and observational: we follow real APOE4 carriers over time and compare each member with their own earlier self, with no placebo group, no randomisation, and members choosing their own interventions.
That means these are strong signals pointing at what to test next, not proof of cause. Most nutrition, supplement and lifestyle research you read online has exactly the same design. The difference is that we say so, and we show you the confounders.
Read the full methods and limitsBrowse exact outcomes and interventions. Each result keeps its source, measurement rule and audit record beside the claim.
Track the Phoenix calm rating separately from other subjective outcomes.
Phoenix daily check-in calm score · Aim: higher
Got sunlight
—Neutral resultGot-sunlight tags showed no measurable calm benefit across 64 women and stayed flat to slightly negative at every support floor.
0 selected member cases · not a response rate
Women with got-sunlight tags and comparable calm ratings at the tested support floors.
Sauna plus breathwork
—Neutral resultHabit combinations, including sauna plus breathwork, did not outperform their best single ingredient in Issue 01.
0 selected member cases · not a response rate
Members with sufficiently dense paired habit and calm-score data for a combination comparison.
These historical records remain beside the current evidence so you can see why their status changed.
Breathwork
!Context affected this recordThe Breathwork Believer averaged 7.9 calm points on 34 breathwork days versus 6.4 across 26 comparison days, with sauna often co-occurring.
Breathwork Believer · APOE4/4 · male · age 60-69
Calm averaged 7.9 on 34 breathwork days versus 6.4 across 26 comparison days, with sauna often co-occurring.
What else changed: nearby starts included sauna.
Next study: repeat Calm rating after a dated Breathwork window.
1 selected member case · not a response rate
The curated Breathwork Believer comparison of breathwork and non-breathwork days.
1 selected case shown with this evidence.
Sauna
!Context affected this recordThe Breathwork Believer's sauna days averaged 1.64 calm points higher, but sauna and breathwork often occurred together.
Breathwork Believer · APOE4/4 · male · age 60-69
Calm averaged 1.64 points higher on sauna days while breathwork often occurred alongside sauna.
What else changed: nearby starts included breathwork.
Next study: repeat Calm rating after a dated Sauna window.
1 selected member case · not a response rate
The curated Breathwork Believer comparison with co-occurring sauna and breathwork days.
1 selected case shown with this evidence.
Evidence collected through 2026-08-09.
Collecting evidence
Alcohol is being tracked against this question, but Phoenix has not yet published a ranked result for this exact question.
Every carrier who logs a dated start and a repeat test moves this page closer to an answer, including you.
Get the Issue 01 Evidence Map by email. It groups the same evidence by outcome and by intervention, including what worked, what did not, and what Phoenix wants to test next.
Turn evidence into your next test
Forty carriers with a dated start and a repeat blood test close it. Creatine, vitamin D3 and B12 sit further back. Your next blood test is somebody else's answer, and theirs is yours.
Full Issue 01 index
Start with the result you want, or start with something you are already taking or doing. Both paths lead back to the same measured records.