Managing side effects

Changes in thinking and memory

Trustworthy information about changes in thinking and memory for people with cancer, their families and friends

Overview

Many people diagnosed with cancer notice changes in the way they think and remember information. This is called cancer-related cognitive impairment. People may also call it “cancer fog”, “chemo brain” or “brain fog”.

Changes in how the brain works (cognitive function) can be a normal part of getting older, but cancer-related cognitive impairment is different. You may notice changes before treatment starts, during treatment or after treatment has finished.

Thinking and memory changes can affect your physical and mental wellbeing, but it can be managed. Call Cancer Connect on 13 11 20 to talk it through with our qualified professionals.

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What's in this fact sheet

Key questions

Learn about common changes to thinking and memory, who is affected, and how long changes may last. 

Managing thinking and memory changes

Find practical tips to help you cope with changes, including brain training, setting daily reminders, and getting enough exercise and rest. 

Questions for your doctor

It can be a good idea to prepare a list of questions before your appointments. See our list of questions about thinking and memory changes.