Whereas recognition of the inherent dignity and of the equal and inalienable rights of all members of the human family is the foundation of freedom, justice and peace in the world, Whereas disregard ...

Crowds make their way through the Shibuya District in Tokyo, home to a key railway station and one of its busiest neighborhoods. Rudy Sulgan/Corbis Yuval Noah Harari has a few unconventional theories ...

Narrator: Well here we are ladies and gentlemen, in the heart, the powerhouse of the circulatory system, the hardest working muscle in the entire human body! Your heart first pumps blood to your lungs ...

Narrator: Blood gets around our bodies through a system of blood vessels. To picture the blood vessels, imagine a busy network of roads. And those roads are always full of little vans which are busy ...