No clear answer on that, but the New York Times Magazine has an excellent article on the science of epidemiology, and the difficulty of finding a common cause for relatively rare diseases. You can read it here.
Americablog has a post saying that cell phones help prevent Alzheimers, at least in mice. I am pretty impressed with those industrious mice making deals and socializing, taking pictures, etc. when other mice just shred things.
This is the best news since they discovered that coffee helps prevent Alzheimers. Since I will probably have to keep working till I drop, and a visiting nurse runs on coffee and cell phones, it’s good to know I’m doing something healthy every day when I drink my four cups and then spend ten minutes of every hour trying to coordinate schedules.
If only blogging promoted a slim waist. But you can’t have everything.