Learn
Everything we have looked into is here, free, and every claim comes with the study behind it.
Why none of this sits behind a paywall
Understanding your own body should not cost money. That is a position the rest of this site is built to keep rather than to advertise, which is why nothing here asks for an account or an email address.
Studies that found nothing are published next to the ones that found something. A page showing only the wins is an advert.
Research
One question per article: what was asked, what the studies said, and how firm that is. The exact search sits at the foot of every one, so you can run it yourself and see whether we left anything out.
Guides
The same evidence, written to be acted on. Each guide takes one subject, such as sleep, strength, fibre or light, and it is free to read here and free to download.
Every research question, in one list
We write a page per question rather than per subject. This is the index: the question, the short answer, and how much evidence sits underneath it. Blue light glasses through to nattokinase.
The raw data
The spreadsheet behind an analysis, as a file, with no account and no form in the way. Start here if you would rather check our arithmetic than take it on trust.
How we decide what is true
Which databases get searched, what makes it in, what gets thrown out, and what the two labels above a verdict mean. Written down so you can hold us to it.