human
I've noticed that my hair is falling out. What is the cause of this and how can I stop it?
assistant
The most common cause of hair loss is due to a condition called telogen effluvium, which is caused by hormonal changes or stress. Telogen effluvium causes hair follicles to go into a resting phase, where they don't grow any new hair. This can be temporary, but if left untreated, it could lead to permanent hair loss. There are treatments available for telogen effluvium such as topical creams and oral medications, so it's important to consult with your doctor about what treatment options may work best for you.