Alexithymia is not considered a mental disorder on its own. It was first introduced into psychiatry by Peter E. Sifneos, a psychiatrist and professor at Harvard Medical School in 1976.

For women, it's about 7%. For men, it's almost double that, about 13%. High levels of alexithymia are associated with psychological disorders, including autism, depression, and schizophrenia.

The latter category, for instance, is sometimes referred to as normative male alexithymia, which describes men having difficulty recognizing and talking about their emotions because of certain ...

Alexithymia correlates with neurobiological differences among substance users but not healthy people. Childhood trauma is also linked with neurobiological differences, even among people with the ...