Breast cancer rates are rising in the U.S. among adults under the age of 50.
While the number of early cases has ticked up steadily over the past two decades, researchers reported a sudden spike in 2016 — and they don’t yet know why.
Breast cancer rates are rising in the U.S. among adults under the age of 50.
While the number of early cases has ticked up steadily over the past two decades, researchers reported a sudden spike in 2016 — and they don’t yet know why.