New guidance says most women should begin screening for breast cancer at 40, 10 years lower than previous guidance. The U.S. Preventative Services Task Force, a group that guides insurance policies with its decisions, says women with average risk should be screened every other year between ages 40 and 74. Before, task force recommendations suggested women should begin screening at 50 unless they had higher risk factors. But with higher rates of breast cancer among women in their 40s, the last task force chair said there’s more value in screening at younger ages.

(Video courtesy of CBS Boston)