Researchers don’t know why Alzheimer’s seems to pass from mother to child more often than from the father.

University of Kansas School of Medicine researchers found 21 children of Alzheimer’s patients (as well as a larger group of people with no familial history of it) and gave them a couple of MRIs spaced 2 years apart. The researchers then analyzed the amount of gray matter found in their brains in both scans. They found that those people whose mothers had Alzheimer’s showed an increase in gray matter, while the group of people with Alzheimer’s-afflicted fathers did not – as was the case with the group with no familial Alzheimer’s history.

Children of Alzheimer’s-afflicted moms, in fact, are four to 10 times more likely to contract the condition.

So not that this is great news for anyone, but if you were worried about your father’s Alzheimer’s passing down to you – you might be able to sleep a little easier.

The study appears in the March 1 issue of Neurology, the medical journal of the American Academy of Neurology.

In a related story, ParentDish is still more or less unreadable by fathers.

(pic is related!)

Sauce: ParentDish