The findings of Dutch researchers published in the NEJM raise the possibility of nondrug treatments related to brown fat, Dr. Celi said.

The idea is to accelerate the process by, as Heyman says, “chang[ing] … conditions that markedly reduce the value of the drug relative to the nondrug alternative.”

It is an evidence-based, nondrug, short-term (usually four to eightsessions) therapy based on the concept that chronic insomnia is maintained by anumber of physical and behavioral factors.