I'm not surprised

Five major psychiatric disorders share common genetic link

In the largest study of its kind, scientists have revealed for the first time ever that five major psychiatric disorders actually share common genetic risk factors. The five fairly distinct conditions include attention deficit-hyperactivity disorder, autism, bipolar disorder, major depressive disorder and schizophrenia. Not only were these conditions connected, but many were related through variations in just two genes, which are responsible for encoding calcium channels in the brain.

Guess which microbe's virulence is dependent on calcium levels...