From Petri Dish to People — Evidence Decoded
“Studies show…” Okay — but WHAT study? Cells in a dish, mice, 30 humans and 3,000 humans are very different levels of evidence. Learn the Evidence Ladder, what clinical trial Phases 1–4 actually mean, the difference between approved and investigational, and Heather's Four Questions for any big science claim. 8 short lessons, slides, knowledge checks, a quiz and a printable cheat sheet.