Continue reading the main story. The Wallace Line swerves among the islands of Indonesia from just west of Bali to the seas south of the Philippines. Itâs named after the British naturalist Alfred Russel Wallace, who discovered in the mid-19th century that different species of flora and fauna grew on either side.he Wallace Line swerves among the islands of Indonesia from just west of Bali to the seas south of the Philippines.
The USPSTF recommends that women who are 50 to 74 years old and are at average risk for breast cancer get a mammogram every two years. Women who are 40 to 49 years old should talk to their doctor or other health care professional about when to start and how often to get a mammogram. Women should weigh the benefits and risks of screening tests when deciding whether to begin getting mammograms at age 40.
Mammography is the most reliable method of finding breast cancer. Our recommendation If you are 40 to 49: Talk to your doctor about your risk of breast cancer, along with the benefits and risks of mammography. If you are 50 to 69: Have a mammogram every 2 years. If you are 70 or older: Talk to your doctor about how often you should have a mammogram. Research has shown that women who have mammograms regularly are less likely to have a false positive (when the test results suggest cancer when none is present).