Students will spend 25 years glued to their phones if they don't change their screen habits, a study has found.

The average school, college or university student spends five and a half hours on their phone per day, which could amount to 25 years of their lives.

And the four per cent who spend nine hours or more on their phone could see themselves wasting 41 years of their lives locked into a screen.

The research, which was conducted by Fluid Focus over the first five months of the year, highlights rates of smartphone usage, the negative impact it has on learning and attention span, and student's desire to reduce it.

Their figures are based on a waking day of 16 hours and 72 years of smartphone use from the age of 11 to 83.