A Chinese University study on Thursday showed that practising Chinese calligraphy can promote brain health, with researchers recommending that people be encouraged to take part in more cognitive activity to prevent dementia.

The study involved more than 100 people aged between 55 and 75 who had been practising Chinese calligraphy for an hour a week for a decade.

Half of the participants doubled their practice time during the study, and the researchers found significant improvements in their brain network connectivity and memory.

Psychiatrist Allen Lee, who led the research, explained why Chinese calligraphy can stimulate brain function.

"When you practise, you use your memory because you have to remember the words. You have to pay attention to what you are writing, and you have to have good eye and hand coordination," he said.

"You check your work. If you have the chance to practise again, how would you improve it? So you have that kind of reflection."

Lee also suggested that other cognitive activities, such as reading and playing chess or mahjong, have similar benefits, making them a valuable lifestyle intervention to prevent dementia in Hong Kong's ageing population.

"The risk of developing dementia increases with age. So it's really important that not only older adults, but even those who are now in middle age, start to be aware of the importance of cognitive activities," he said.

"We want people to be aware of brain health and find ways to help themselves to prevent or slow down the risk of developing dementia."