Hair loss is often blamed on aging or genetics, but chronic stress may be an overlooked trigger. Elevated cortisol — the body’s primary stress hormone — can disrupt normal hair growth cycles, pushing more strands into the shedding phase and reducing the time hair spends growing.
When cortisol remains high over time, the body shifts resources away from non-essential functions like hair production. This can lead to increased shedding, hormonal imbalances and a more inflammatory environment around hair follicles. Many people notice sudden, diffuse hair loss weeks or even months after a stressful event.
While stress can’t always be avoided, supporting the body may help minimize its impact. Managing cortisol levels, replenishing key nutrients and reducing inflammation can all play a role in restoring healthier hair growth. In many cases, stress-related hair loss is temporary — but addressing the root cause is key to recovery.
SOURCE:
iHerb, March 24, 2026