
Public Health England has announced that it's working on a tool to help calculate people's "brain age" by looking at lifestyle factors such as how much they drink, smoke and do exercise.
Doctors believe that the computer-based test could help identify the risk of dementia in later life.
Charles Alessi, Public Health England's lead on dementia, told
The Guardian that the test was designed to be educational.
"We are offering people an opportunity to know exactly how risk factors can influence the rate of decline of their cognitive functions," he said. "Dementia is a whole group of conditions and we can manage some of the risks. We know, for example, smoking can accelerate cognitive decline."
A similar test has already been developed by Dr Vincent Fortanasce, clinical professor of neurology at the University of Southern California. The 25-question test, first published in the
Daily Mirror, is intended to give respondents a sense of their brain age, and help them understand whether they could do more to improve their mental fitness.
The test is included in full below. Note: this test should be considered a guide only. If you have any concerns, visit your GP.