Cancer 101 | National Geographic How does cancer spread through 8 months ago   02:56

National Geographic
What is cancer, and how does it start? Find out how genetics play a role, which types of cancer are the most prevalent, and what is being done to fight this deadly disease.
➡ Subscribe:

About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

Get More National Geographic:
Official Site:

Cancer 101 | National Geographic

National Geographic

Comments 286 Comments

National Geographic
Today, cancer causes one in every seven deaths worldwide. What are your thoughts on this disease?
Krunal Raghavani
Only America has cancer patient and whole world was nothing
Nobel Hossain
Barry barry Thanks for you
Nobel Hossain
Excellent video
Kubuhzz -LM
Playsafe TV
Earth= Human
Human= Cancer
Angelica Castillo
People are saying that There is already a cure for cancer.doctors just dont want to use it because they are afraid of losing there Money or job I think
It's not enough. We need to do more. We need to understand it more so we can end it. It's brutal and it needs to end.
Wicked Mcjagger
My mom just died because of that wish every person will be save
Rachel Wellman
Why do the malignant tumors cause people to die? Is it because they are disrupting organ function?
J.A. Nasir
I self seafaring with prostate canser, just keep in mind your willpower plays very positive roll to keep you going. I pray for all C peasants who are struggling for life against this beast. 🌹
Sunil Kanade
Islam is cancer to world..
At the start, i thought i was watching the video, turns out it was an ad for cancer treatment
victor nderu
Watching this is very scary when you have seen people with Cancer.
Cromwell Castaneda
Fortnite players:
Alpha Romeo
Fasting kills cancer cells.
Anusha M Cheluvaraj
The biggest question is did a disease which was not dangerous a century ago become the biggest killer of the 21st century ????
foreign affair
Lung cancer stage 4 never be cure it's long journey for chemotherapy treatment radiotherapy worst tired everyday getting weaker and weaker.. there's people shout out stay strong for?
Benjamin Hernandez
Ugh, seeing the IV in the person's hand made me cringe. I'm currently going through chemo for Hodgkin's Lymphoma... No fun at all. Best wishes to all my brothers and sisters fighting the fight against cancer.
The Foundation
Video: as treatments and early detection improves
Technology with radiation: *I'm gonna stop you right there*
Add Reply

How does cancer spread through Cancer 101 | National Geographic 8 months ago   04:44

View full lesson:

Cancer usually begins with one tumor in a specific area of the body. But if the tumor is not removed, cancer has the ability to spread to nearby organs as well as places far away from the origin, like the brain. How does cancer move to these new areas and why are some organs more likely to get infected than others? Ivan Seah Yu Jun explains the three common routes of metastasis.

Lesson by Ivan Seah Yu Jun, animation by Andrew Foerster.