1960's - James Baldwin. A civil rights activist involved in the civil rights movement. In 1963, He was good friends with Harry Belafonte and other civil rights figures. Baldwin met with public figures to discuss the moral implications of the civil rights movement.
1 Certain genetic disorders, such as Down syndrome, are associated with an increased risk of leukemia. 2  Exposure to certain chemicals. 3  Exposure to certain chemicals, such as benzene â which is found in gasoline and is used by the chemical industry â also is linked to an increased risk of some kinds of leukemia. 4  Smoking. Previous cancer treatment. 2  People who've had certain types of chemotherapy and radiation therapy for other cancers have an increased risk of developing certain types of leukemia. 3  Genetic disorders. 4  Genetic abnormalities seem to play a role in the development of leukemia.
Genetic risk factors. About 5% to 10% of breast cancer cases are thought to be hereditary, meaning that they result directly from gene defects (called mutations) inherited from a parent. BRCA1 and BRCA2: The most common cause of hereditary breast cancer is an inherited mutation in the BRCA1 and BRCA2 genes. People with this syndrome have an increased risk of breast cancer, as well as several other cancers such as leukemia, brain tumors, and sarcomas (cancers of bones or connective tissue). 2  This is a rare cause of breast cancer. 3  CHEK2: The Li-Fraumeni syndrome can also be caused by inherited mutations in the CHEK2 gene.