Tap the lungs, the heart or the muscles to see what each claim is graded.
A place on the body shows what a claim is about, not that a product works there. The grade beside each claim is calculated from the studies by fixed rules — how we grade. A claim nobody has tested is marked “Not yet tested” and never given a grade.
Habits studied against how long people live, rather than one part of the body, are under Whole life.
Body map · grades calculated from the studies
Tap a part of the body to see every claim we have graded about it. A place on the body shows what a claim is about — the grade says whether the evidence supports it.
Claims about the lungs, mucus and a smoker’s chest.