And even two people with breast cancer, or two people with lung cancer, might have two very different diseases on the molecular level, so a drug that works for one might not work for the other.

He added: "We recognise that these synapse proteins are the molecular basis for many brain diseases."

We can now see that many of them are related to one another because the molecular underpinnings of those diseases are in the synapse proteins which are physically binding to one another.