https://www.youtube.com/watch?v=BOjTegn9RuY
(Also contains a great explanation for why sometimes more examination is worse than less or no examination. 照一照，防患未然，总没错吧？错！尤其是非常容易受到心理暗示的疾病，如 chronic pain 和 fibromyalgia。）
23 1/2 hours:
http://www.evanshealthlab.com/23-and-12-hours/
能把复杂的医学概念和研究数据说得通俗易懂是很难很难的技术活。非常赞！
