The Pulling

When Adele Dumont is diagnosed with trichotillomania – compulsive hair-pulling – it makes sense of much of her life to date. The seemingly harmless quirk of her late teens, which rapidly developed into almost uncontrollable urges and then into trance-like episodes, is a hallmark of the disease, as is the secrecy with which she guarded her condition from her family, friends, and the world at large.

The diagnosis also opens up a rich line of inquiry. Where might the origins of this cond…