Under wire Bra is it a health risk?

I guess that saying don't listen to everything you hear! Is it fact or fiction take a look:

There is a pervasive myth that says that wearing an underwire bra will give you breast cancer, and it remains firmly a myth, without basis in medical fact. The origin of this misunderstanding comes from the book Dressed to Kill, published in 1995 by Sydney Ross Singer and Soma Grismaijer, a couple of anthropologists. The authors, who are not medical doctors, claim that wearing an underwire bra restricts drainage of fluid in the breast tissue through the lymph nodes, and therefore marinates the breast tissue in toxins. The problem is that these authors did not arrive at their conclusion on the basis of any medical study, and they exhibit a fundamental lack of understanding of the lymph system. The lymph nodes that handle drainage of bodily fluids from the breasts are located in the armpits — and so drainage is upward and toward the arms, not downward past the underwire. In other words, a bra underwire can’t prevent your body from draining toxins from your breast tissue, because an underwire doesn’t cut off or restrict anything relevant to lymph function.