Insomnia before menstruation is called premenstrual tension syndrome (PMS) and is mainly characterized by insomnia and dreaminess or mood changes, such as emotional instability. In addition, it may also manifest as localized breast swelling and pain. This kind of patients can take Prozac pills before menstruation, most of them can improve the clinical symptoms, or take oral glutamine and vitamin B1 to nourish the nerves in daily life, which will also improve the symptoms of insomnia. The cause of PMS is still unclear, but most of them are directly related to the overproduction of estrogen. These patients should not eat foods containing estrogen, such as soy milk and royal jelly, before menstruation.