Needles may not seem like the best tool for treating stress, but acupuncture could be tapping into basic biological systems that keep stress under control.

Reporting in the Journal of Endocrinology, researchers led by Ladan Eshkevari, assistant program director of the nurse anesthesia program at Georgetown University School of Nursing and Health Studies, mimicked chronic stress in a rat model and documented how stimulating certain body points with acupuncture can alter stress hormones.

The body’s stress response is triggered by two main pathways, one of which involves the HPA axis, or hypothalamus-pituitary-adrenal axis, in which these areas of the brain are activated to release peptides and proteins such as corticotropin-releasing hormone (CRH). They, in turn, launch the production of other hormones such as cortisol and norepinephrine that rev up the anxiety meter. Once activated, the system causes the heart to beat faster and the senses to go on alert. It also diverts the body’s energy away from background operations such as digestion to prime and fuel the muscles into a state of readiness. Read the rest of this entry →