Joan Lunden celebrates 3 years cancer-free: 'My hair grew back!'

/ Source: TODAY

NBC News special correspondent Joan Lunden is celebrating three years cancer-free. She tells Megyn Kelly about going through 16 rounds of aggressive chemo, and says she is now “NED – no evidence of disease.” She says she “wouldn’t be here” had she not gotten an ultrasound, and urges women to know their own breast density.