Videos that get over 1,500,000 views are usually cute, short, and funny. This one is none of those things, unless biochemistry amuses you. It's a lecture on why your liver doesn’t like dealing with high fructose corn syrup. Dr. Robert Lustig MD puts forth a strong argument that HFCS is the worst offender among the substances fueling the obesity epidemic.
Get comfortable, make yourself a cup of tea, and enjoy the lecture.