Impossible Question Click here for the Impossible Question.   Fox News Christmas Tree lit on Fire  Article here.    Alzheimer’s Want to dramatically lower your risk of becoming a victim of Alzheimer's disease? Try periodic fasting and regular exercise.  Quote from linked story:  "Ryan Julian, a chemistry professor at UCR, said in a press release, “roughly 20% of people have the plaques, but no signs of dementia. This makes it seem as though the plaques themselves are not the cause.”   The amino acids that make up proteins like tau can either be right-handed or left-handed isomers, and normally proteins in living things are made from all left-handed amino acids, explained Julian.  However, most proteins only survive for less than 48 hours in the body, and if they hang around too long, certain amino acids can convert into the other-handed isomer. So that means a left-handed isomer could inadvertently convert into a right-handed isomer, which can lead to serious problems.   “If you try to put a right-handed glove on your left hand, it doesn’t work too well. It’s a similar problem in biology; molecules don’t work the way they’re supposed to after a while because a left-handed glove can actually convert into a right-handed glove […]