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 member-entered mental-sharpness rating.
Phoenix daily check-in mental-sharpness score · Aim: higher
Seven-day check-in streak
✓Repeated positiveAcross 67 members, seven-day-plus streak periods carried 0.21 to 0.26 more mental-sharpness points than one-to-two-day streak periods.
0 selected member cases · not a response rate
Members contributing comparable seven-day-plus and one-to-two-day check-in streak periods.
Earlier bedtime
✓Repeated positiveAmong APOE4/4 carriers logging early bedtime, improved mental sharpness outnumbered worse ratings; no public responder percentage is generated.
0 selected member cases · not a response rate
APOE4/4 carriers with early-bedtime tags and comparable mental-sharpness ratings.
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.