People practice yoga at a fundraiser for a breast cancer foundation in Hong Kong. Ed Jones/Getty Images hide caption

itoggle caption Ed Jones/Getty Images

A woman is positioned for a traditional mammogram at Tufts Medical Center in Boston. Bizuayehu Tesfaye/AP hide caption

itoggle caption Bizuayehu Tesfaye/AP

Mammography detects cancer, but debate rages over when and how often women should get screened. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Sally O'Neill decided to have a double mastectomy rather than "do a wait-and-see." Richard Knox/NPR hide caption

itoggle caption Richard Knox/NPR

The Susan Komen for the Cure Foundation is pulling back from some high-profile fundraising walks. LM Otero/AP hide caption

itoggle caption LM Otero/AP