Breast cancer (BC) is the most common cancer type among women worldwide. Patients with BC and survivors of BCoften experience a plethora of undesirable, anticancer therapy-related symptoms, which deteriorate their quality of life(QoL). For this reason, the development of treatment strategies BC, which are effective, safe, and tolerable is certainlyneeded. Personalized medicine offers therapeutic options that are tailored to the individual needs of each patient. Inaddition to the development of modern target therapies, there is an important need to combat some common adverseeffects of standard therapies for BC.This article presents some recent research findings that identify selected genetic changes, which are associated withthe occurrence and severity of adverse effects of the BC therapies. It focuses on typical side effects of current anticancertreatments, which reduce the QoL of BC patients and survivors. In particular, it addresses pain [including chemotherapy(CHT)-induced peripheral neuropathy (CIPN) and lymphedema], depression, cognitive dysfunction, premature menopause, and CHT-induced menopause.It introduces some potential interventions [e.g., using nicotinamide riboside (NR) and melatonin], targeted for womenwith BC, who suffer from CIPN, as well as nutritional/exercise programs for necessary lifestyle modifications to reduceobesity and the risk of BC recurrence among BC survivors. As a consequence, the described approaches may be helpfulin planning personalized treatment, facilitate the patient’s tolerability of many currently available anticancer therapies,optimize the medication selection or dosage, and improve the patients QoL.