essential oil inhalation lowers cortisol by calming the brain's stress signaling pathway

Cortisol is your body's primary stress hormone — and chronically elevated levels are linked to poor sleep, weight gain, low energy, and a worn-down immune system. When aromatic compounds reduce the brain signals that trigger cortisol release, many people notice a genuine sense of calm, easier wind-down at night, and less of that wired-but-tired feeling.