According to a new study by Bar Ilan University's Leeav Sheena-Peer and colleagues (2025), emptiness isn't unique to BPD-but, unlike the form it takes in other disorders, it tends to be more chronic. Even so, as the authors note, "the high prevalence does not necessarily imply that it is static over time" (p. 404). Maybe, they proposed, by tracking emptiness on a daily basis, these fluctuations could be captured and better understood.