Post-chemotherapy cognitive impairment (PCCI) is a common side effect experienced by cancer patients following chemotherapy treatment. It is characterized by memory loss, difficulty concentrating, and reduced mental acuity. Alternative terms for PCCI include chemobrain, chemo fog, and chemotherapy-induced cognitive dysfunction. While the exact cause of PCCI is not fully understood, it is believed to be a result of the toxic effects of chemotherapy on the brain. Symptoms typically improve over time, but can persist for several months or even years. Treatment options for PCCI include cognitive rehabilitation, medication, and lifestyle changes such as exercise and a healthy diet.