ATLANTA, Georgia (CNN) -- Dr. Bernadine Healy can't even count the number of women who've complained to her about how tough it is to make the decision about hormone replacement therapy.
A 2002 study found HRT made women more vulnerable to health problems including heart attacks and strokes.
"Women say, 'Oh it used to be so simple. Now it's so complex,'" says Healy, a cardiologist and former director of the National Institutes of Health. "And I tell them, 'Yes, it used to be so simple because it was wrong.'"