“Exactly how Alzheimer’s disease proliferates through the brain, overtaking one region after another, has eluded scientists. As the disease progresses, tau—a malformed protein that forms snarls and tangles inside neurons—shows up in more and more brain areas. Researchers have wondered whether tau, and the disease, are working their way out from a single area of origin or mounting numerous, distinct attacks on vulnerable parts of the brain. Two new studies in mice provide strong support for the first idea: Tau seems to pass from affected cells to their neighbors, spreading much the same way a virus or bacteria infection would.”

This blows my mind. I’m glad to know that research on Alzheimer’s is advancing.

kristinnoeline:

Are you a boy or a girl? Go on and check the box. Are you straight or are you gay? I need to know what you are so that I can know what you stand for. Please just check the box, it will only take a second. Sadist or masochist? Slut or virgin? Butch or femme? I need to know…