I am bemused with scientific studies. There is one out now stating that the “myth” that bras promote breast cancer has been refuted.

Apparently this was based on the fact that breast cancer is more common in developed than developing countries.

Seems far more likely that the tendency of women to have fewer children and eschew nursing would be a more significant marker.

I fact the healthiest thing for women is the following:

Have children before 30
Have many children
And nurse on demand for greater than one year per child.

Many mothers in developing countries do all these things, nursing children to 2 years and beyond and nursing far more years than women in industrialized countries.

One study said that every 12 months of nursing reduced breast cancer risk by 3-5 percent.

And that is only the benefit to mom. Babies who nurse on demand get countless advantages from the process.