People as young as 35 could be experiencing this symptom that could point to them developing dementia later in life. People as young as 35 could be experiencing this symptom that could point to them developing dementia later in life. Health
Night-time dementia warning sign that appears in your sleep ‘decades’ early
![Night-time dementia warning sign that appears in your sleep ‘decades’ early](https://cdn.images.express.co.uk/img/dynamic/11/590x/2012452_1.jpg)