Fears that devices like smartphones and tablets could cause "digital dementia" have been dismissed by a new study, which shows that older people who regularly use technology are less likely to experience a decline in mental abilities.

The study included over 400,000 people over the age of 50, and showed that the use of computers, phones and the internet was associated with a lower risk of cognitive decline*.

Cognitive skills* - the mental functions that allow us to process information, learn, remember, think, solve problems, and make decisions. They are the basis of thinking, understanding, and interacting with the world around us.

While it's not clear whether technology helps the brain or whether people with better skills use it more, the results call into question the idea of ??"digital dementia" - a popular, non-medical term used to describe the decline in mental abilities as a result of excessive use of technology, especially in young people. 

Dr. Jared Benge from UT Health Austin said: “For the first generation exposed to technology, its use is associated with better cognitive functioning – a more hopeful message than expected.”

The authors explain that the impact of technology on the brain depends on how it is used: passive use (like watching TV) does not help, while active and engaging use can have major benefits for the aging brain.

Other experts welcomed the study, saying it challenges the myth that technology "makes us stupid," and instead suggests it could improve mental health in old age.