A Blood Test for Cancer

Go to to try their Scientific Thinking course. Sign up now and get 20% off an annual Premium subscription. Since many cancers don’t have symptoms early on, they may go unnoticed until they are at an advanced stage. But that is changing, thanks to a newer, non-invasive tool. Hosted by: Hank Green SciShow is on TikTok! Check us out at @scishow ---------- Support SciShow by becoming a patron on Patreon: ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Bryan Cloer, Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, charles george, Christoph Schwanke, Ash, Silas Emrys, Eric Jensen, Adam Brainard, Piya Shedden, Alex Hackman, James Knight, GrowingViolet, Sam Lutfi, Alisa Sherbow, Jason A Saslow, Dr. Melvin Sanicas, Melida Williams, Tom Mosner ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents