Could a single sauna session lift depression and anxiety?

This study investigates whether a single session of whole-body hyperthermia (using an infrared sauna) can quickly improve symptoms of depression and anxiety. Researchers will measure brain activity, inflammation, and mood changes in four groups: healthy postpartum women, postpartum women with depression, healthy adults, and adults with major depression or anxiety. The goal is to understand how heat therapy might work in the brain and whether it is a feasible treatment for postpartum depression.