When it comes to stress associated with hair loss, there are three different types to it: Telogen effluvium, Trichotillomania and Alopecia areata.
Telogen effluvium: In such cases, the mental stressors push hair follicles to a resting phase, making it easy to fall out over time.
Trichotillomania is the unsuppressable urge to pull out hair from the scalp, even eyebrows. This can be a result of major stress.
Alopecia areata, as we have discussed, is an autoimmune disease, which can be caused by stress. However, many other factors can also lead to it.