History has considered that Mary Todd Lincoln, wife of Abraham Lincoln, had many strange and difficult behaviors. There has not been one accepted theory of what may be the underlying cause of these behaviors. It has been said this was a trial to Lincoln in his life to deal with her problems.
One physician, a cardiologist, suggests that Mary Todd Lincoln may have had pernicious anemia due to a Vitamin B12 deficiency and this could have been a possibly inherited condition.
Read more about this theory and why Dr. Sotos believes in his theory.

Tags: Lincoln