Anyway, she was talking about when she discovered the lump in her breast and said "Surely its a cyst, I'm very 'cysty'". Tyra said, "Me too!" And Melissa said "You know, if you drink alot of caffeine you will have VERY 'cysty' breasts"...
Hmmm got me thinking. So I looked it up:
Thirty percent of American women have fibrocystic breast disease, a benign (noncancerous) condition characterized by round lumps that move freely within the breast tissue. This lumps are usually tender to the touch. In contrast, a cancerous growth in the breast is often not tender or freely movable when touched. The texture of the lumps can vary from soft to firm. For many women, the tenderness may increase as menstruation approaches. Often the cysts fill with fluid and can enlarge premenstrually in response to the increase in hormonal levels during this time.
The main hormones implicated in the worsening of breast symptoms premenstrually include estrogen, the main female hormone, and prolactin, the milk release hormone secreted by the pituitary gland. Dietary factors have also been implicated. These include caffeine intake from coffee, black teas, colas, and chocolate, as well as excessive saturated fat and salt. Usually the symptoms of pain and swelling do not persist once menstruation begins, and most women notice significant relief at this time. The difference in the breast swelling can be so marked between the first and second half of the menstrual cycle that some women actually change bra size.