Myth

Most breast cancers run in families.

Fact: 

Only 5% to 10% of breast cancers are thought to be hereditary, which means they are caused by abnormal genes passed from parent to child. The other 90% are largely due lifestyle and environmental factors.

Myth:

There is nothing you can do to lower your risk of developing breast cancer.

Fact:

Ninety percent of breast cancers are largely due to lifestyle and environmental factors. To keep your risk as low as it can be, maintain a healthy weight, exercise regularly, and limit the amount of alcohol you drink.

Myth:

Bras cause breast cancer.

Fact:

Underwire bras do not cause breast cancer. A 2014 scientific study looked at the link between wearing a bra and breast cancer. There was no real difference in risk between women who wore a bra and women who didn’t wear a bra.

Myth:

Regular mammograms prevent breast cancer.

Fact:

Mammograms don’t prevent breast cancer, but they can save lives by finding breast cancer as early as possible, when it’s most treatable.

Myth:

Antiperspirants cause breast cancer.

Fact:
There is no scientific evidence to support the claim that antiperspirants cause breast cancer, either because of toxin buildup or aluminum exposure.