Breast-feeding for more than six months may protect against breast cancer in women who are nonsmokers.
New research from Spain looked at about 500 breast cancer patients and found women who had children and breast-fed were diagnosed with breast cancer at a later age.
They also found nonsmoking women who breast-fed their babies for longer than six months lived longer before getting a breast cancer diagnosis.
Smokers who breast-fed tended to be diagnosed with breast cancer young and got no benefit from breast-feeding longer.
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