“This symptom can serve as a clinical, and in some cases a preclinical, indicator of neurological diseases such as Alzheimer's disease, Huntington's disease, Parkinson's disease, vascular dementia, and mild cognitive impairment, among others,” co-corresponding author Pablo Billeke, with the Laboratory of Neuroscience and Neuromodulation in Santiago, Chile, and colleagues explain. “Therefore, objective evaluations and follow-up are required.”

Well, that's frightening. I don't mean to be insensitive by downplaying the threat of HIV because it was always a death sentence in the early days. But this may be the HIV of our times. The thing that we study and talk about a lot for years and years. Apologies if I offended. I really didn't mean to.