Engage your brain with digital devices to stay mentally sharp as you age, a recent meta-analysis suggests.
Using ‘smartphones, computers, and the internet’ appears to slow down cognitive decline in people over 50. A recent meta-analysis of nearly 60 studies involving 410,000 individuals found that those who spend more time on these devices are less likely to experience cognitive impairment.
Cognitive decline refers to a gradual decrease in cognitive abilities such as memory, attention, and processing speed.
It can be caused by various factors including age-related neurodegenerative diseases like Alzheimer's and dementia.
Research suggests that approximately 47 million people worldwide suffer from dementia, with numbers projected to triple by 2050.
Early detection and intervention are crucial in managing cognitive decline, and a healthy lifestyle, regular exercise, and social engagement can help mitigate its effects.
The key way digital devices may help ward off cognitive decline is by keeping people socially connected. ‘Smartphones’ provide an easy means for friends and family to stay in touch, which can be especially important as we age. This social interaction can help build cognitive reserve – a concept that suggests our brains have the ability to adapt and compensate for age-related changes.

Social connection refers to the relationships and interactions people have with others.
It plays a crucial role in mental and emotional well-being, influencing factors such as happiness, self-esteem, and resilience.
Studies show that strong social connections can even reduce mortality rates by up to 50%.
People who lack social connections often experience increased stress levels, anxiety, and depression.
Building and maintaining relationships through activities like volunteering, joining clubs or organizations, and participating in community events is essential for a healthy and fulfilling life.
Research has shown that engaging with digital devices can stimulate cognitive function in older adults. For example, playing puzzle games or learning new skills on a computer may help build cognitive reserve. Additionally, staying connected through social media and online communities can provide mental stimulation and reduce feelings of loneliness.
While the idea of ‘digital dementia’ might seem alarming, the evidence suggests that digital devices can actually have a positive impact on cognitive health in older adults. By using ‘smartphones, computers, and the internet’, people over 50 may be able to slow down cognitive decline and build cognitive reserve – potentially leading to a healthier and more mentally sharp aging process.
- newscientist.com | Digital devices may help ward off cognitive decline in older people