This was a video featured on WheelchairKamikaze's website. It shows how the fungus cordyceps acts on insects. The same fungus has been used for centuries in Chinese medicine, and more recently a derivative is used in Gilenya, the new oral MS medication, which I had decided already I am not interested in. And that was before I wondered if there might be a chance I could have mushrooms sprouting from my brain as a result. So far I am pretty sure there are no reports of such things, but the medical community can be very slow. Who knows.