Can Stress Cause Your Hair to Fall Out?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 20th, 2026.
Yes, stress can cause hair loss through several biological mechanisms. When you experience chronic stress, your body produces elevated cortisol levels, which can push hair follicles into a resting phase prematurely. This condition, called telogen effluvium, affects up to 70% of hair follicles and typically begins 2-3 months after a stressful event. Stress can also trigger alopecia areata, an autoimmune condition causing patchy hair loss, or trichotillomania, a compulsive hair-pulling disorder. Most stress-related hair loss is temporary and reversible once stress levels normalize and cortisol production stabilizes.
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