Over the last twenty years, breast cancer in women under the age of 40 has been rising. Less than 10% of breast cancer cases can be attributed to inherited genetic abnormalities. Factors related to the environment, reproduction, and lifestyle are more commonly linked to breast cancer, and some of these factors can be changed theoretically. The fight against breast cancer also relies heavily on prevention. Early tumour detection and life extension can be supported by various levels of breast cancer prevention. This study focuses on the causes and methods of breast cancer prevention and analyse the facts about potential female breast cancer risk factors, such as hormone, genetic predisposition, breast-related risks, and the interplay between hereditary and non-genetic variables. The study analysed healthy controls and the brain region of cancer patients were used. The study results stated that the functional brain networks in survivors of chemotherapy-treated breast cancer were less efficient than those in healthy controls.