researchers say they were also found in the tissue of women who did not use underarm deodorant. scientists are looking into whether the preservatives in deodorant are leadershipped to -- linked to breast cancer. >>> a genetic mutation. it's a rare mutation that runs if families and it causes men the get cancer earlier in life. the research shows men who inherit the mutation are 10 to 20 times more likely to develop the disease. >>> scientists looking at in vitro fertilization say that they should limit to embryo owes to one or two. the rate of live birth is greater when the mother is implanted as opposed to three or more in there. three or more were associated with a high risk of severe preterm birth. >>> a national campaign now urging "sesame street" to return to breast-feeding or at least showing it. there are more than 5500 signatures on lonnie mitchell's online petition site. in the 1970s and '80s it was common to explain breast- feeding on "sesame street." the mommy blogger wants to advocate the health benefits of nursing and take away the taboo. we asked the people in our