Tomorrow I'm going to Queen Anne's square where I have my head examined once a year. It's part of a trial for HD Predict, a study that is aimed at predicting the earliest signs of Huntington's Disease. Since I tested negative for the disease, I'm the control subject.
When I say "have my head examined" I mean that both literally and figuratively. I spend some quality time inside an MRI scanner and then take a battery of psychological, cognitive and physical tests.
The good news is, if I have a tumor or am barking mad they'll probably let me know. The bad news is, all that jackhammering is enough to send one barking mad.