Vitamin C and the Limeys

Sal and Dr. David Agus talk about the history of Scurvy (壞血病) and Vitamin C

http://www.khanacademy.org/video/vitamin-c-and-the-limeys?playlist=New+and+Noteworthy

Vitamin C exposed to the air and light becomes oxidized and has no nutritional value

Heart Disease and Heart Attacks

Basics of heart disease, heart attacks, heart failure (heart cannot provide all the needs of the body), angina, cardiac arres (heart stopping)

http://www.khanacademy.org/video/heart-disease-and-heart-attacks?playlist=New+and+Noteworthy

Systemic Thinking About Cancer

Dr. David Agus discusses thinking systemically about cancer and other

http://www.khanacademy.org/video/systemic-thinking-about-cancer?playlist=New+and+Noteworthy

From cancering to healthing