Hormone advice online is mostly confident and wrong. Every answer here carries a grade, the real numbers, and — where one exists — the study that disagrees.
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Read this first. Everything below is what the published research currently shows — measured in specific people, under specific conditions, and reported as an average. Most of it is graded B or lower, which is the scientific way of saying we do not actually know yet.
Countless men report results that the studies do not capture. Sometimes that is placebo, or confounding, or a story told after the fact. Sometimes it is a real effect in a real person that a 20-person trial was never going to detect. An average tells you what happened across a group. It does not tell you what happens to you.
So take the grades as the floor, not the ceiling. Where the evidence is thin, we say so plainly instead of picking a side — and then the only way anyone finds out is by measuring it properly.
Start now. Become the proof.
Why this exists. Hormones are upstream of everything — energy, sleep, mood, strength, how you age. They are also the thing almost nobody measures. Baseline exists to change that, and to build the evidence out of the people actually living it rather than whoever is selling something.
— Finn Richert, Baseline
This page only covers what we've been able to grade and cite. If your question isn't here, say what it is — requests decide what gets researched next. And if the evidence turns out not to exist, we'll tell you that rather than invent an answer.
Most of what's above is graded B or below, which means the honest answer is "we don't really know yet." Baseline lets you track your own hormones and lifestyle changes properly — so your results become part of the answer instead of another anecdote.
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