Women's breast health is closely related to their mood, so whenever some patients with benign diseases such as mammary hyperplasia consult Dr. Wang Piling, the person in charge of the breast specialty group in the surgery department of Beijing Tiantan Hospital for health care advice, she always reminds them - laugh out loud three times a day while looking in the mirror. Because an unhealthy mood not only causes breasts to develop benign diseases like pain, lumps, and hyperplasia, but it also can cause these benign diseases to slowly worsen.