Often her subjects look sad, conflicted or physically abnormal.
VOA: special.2009.08.09
It has been known for a long time that people with autism generally have intestinal problems as well, and that these are often coupled with abnormal microbiomes.
Clinical trials have indeed shown that probiotics (a mixture of bacteria found, for example, in yogurt) ease the symptoms of people with irritable-bowel syndrome, who often have slightly abnormal gut microbiomes.