Does stress contribute to hair loss?
Both psychological and physical stress, especially if they are intense and prolonged, can contribute to temporary hair loss. They do this by perhaps altering the hair cycle: shortening the growing stage or lengthening the resting stage. Stress may also have a negative impact on the immune system leading to a more severe type of hair loss called alopecia areata. When the stressful situation is over or the body adjusts to it, the hair usually grows back.