Could the Earth be a living creature?

And how are medicines named and how do HIV protective drugs work ?

23 September 2016

Presented by Chris Smith.

BONSAI TREE

Credit:

CC0, via Pixabay

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Could planet Earth be a living creature, how do they name medicines, what's the difference between a heart attack and a cardiomyopathy, how do HIV protective drugs work and how were the Egyptian pyramids built? Plus, news of a new gene that could screen for heart disease...