Health Alert: Cancer may go undetected

(CBS) - Two new studies suggest that cancer may go undetected in some women under the revised mammography guidelines. In 2009, the U.S. Preventive Services Task Force recommended testing every two years for women 50 to 74. Previously all women over 40 were routinely tested. Researchers at New York - Presbyterian Hospital say in their study - nearly 20-percent of cancers detected from a mammogram were in women in their 40s.

(CBS) - Another new study shows chemotherapy can change the way the brain functions. It's a side effect known as "chemo brain" and can impact a patient's concentration and memory. Researchers at West Virginia University used brain imagining and found areas of the brain used for planning and prioritizing used less energy after chemotherapy.

(CBS) - Air pollution could affect your child's risk of developing autism even before they are born. Researchers at the University of Southern California say exposure to traffic-related air pollution can have an impact while the baby is still in the womb and up to a year after birth. Their study looked at more than 500 children and found kids exposed to the highest levels of air pollution from traffic were three times more likely to develop autism.


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