The early warning sign of dementia that might be keeping you up at night – and 10 other red flag symptoms

THE average person spends 26 years of their life asleep.

So why do we know so little about what happens while we’re snoozing, and what it can tell us about our health?

We all understand that sleep itself is vital for our bodies and minds.

It improves concentration levels, solidifies memories, helps maintain a healthy weight, keeps the immune system strong, boosts mental health, and reduces stress, according to the NHS.