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.
(They no longerrecommend getting a baseline mammogram at age 35.) Expertsâ opinions vary onhow often women should get mammograms, but most recommend that a woman get a mammogram every one or two years. Talk to your doctor if you have any breast symptoms or a family history of breast cancer.