Updates

Lessons that are free to use in any classroom, new research, changes to the dataset, plain-language explainers, and the real genetics behind things you already know. Every entry says which subject it belongs to and what you need to know before reading it. Medical information goes stale, so entries are revised when the evidence moves — revised entries show their update date, not just the day they were first published. Every article here is CC BY-NC 4.0 licensed — free to share and adapt with credit, not for commercial use (details).