Vision problems are said to be the first warning symptom.
This can make judging distance, speed, or distances more difficult, and the affected person may have trouble with recognising objects.
Secondly, aphasia can develop; this is when the person has difficulty finding the right words to communicate what they want to say.
Another symptom of early-onset Alzheimer’s is when there has been a shift in personality and behaviour.
These changes can be subtle at first, but people with the brain condition may become low in mood, irritable, less confident, and show less interest in activities they once loved.