A new study, published this week in the journal of Molecular Psychiatry, suggests that stress can cancel out the benefits of a healthy diet for women. A chaotic afternoon after a healthy breakfast might be akin to a candy bar after a workout. The reason: inflammation. Inflammation is “not an innocent bystander,” said Janice Kiecolt-Glaser, who led the research. Chronic inflammation caused by stress is a risk factor for heart disease, cancer, depression, and dementia. The study, authored by Kiecolt-Glaser and her team, is a small one. Nonetheless, it serves as a useful reminder to take a holistic approach to healthy living.