Reading, puzzles and learning new skills may help delay Alzheimer’s disease, study suggests

Reading, puzzles and learning new skills may help delay Alzheimer’s disease, study suggests

A recent study highlights that ongoing intellectual engagement and brain-activating tasks could reduce the risk of Alzheimer’s and slow mental decline. Researchers observed that individuals who consistently participated in activities like reading, writing, language acquisition, chess, brain teasers, or museum visits were less prone to developing dementia. Andrea Zammit, a neuropsychologist from Rush University Medical Center in Chicago, who spearheaded the research, noted that “these activities act as a workout for the brain, engaging various cognitive functions.”

Even those who didn’t embrace mentally stimulating pursuits earlier in life can still benefit, according to the findings. Middle age is highlighted as a crucial period for safeguarding brain health. Scientists are investigating diverse methods to maintain mental acuity, from musical training to birdwatching and cognitive exercises designed to sharpen thinking. Zammit emphasized that “the focus is on discovering activities that resonate with personal interests and committing to them long-term rather than trying a few.”

Physical health also plays a vital role in preserving cognitive function. Experts advise incorporating aerobic exercises, managing blood pressure, ensuring quality sleep, and considering vaccinations later in life. The study, which involved nearly 2,000 older adults aged 53 to 100 who were initially free of dementia, followed participants for eight years. Researchers evaluated their participation in educational and cognitively enriching activities across different life stages and administered neurological assessments.

Participants who engaged in more mental activities during middle age and later showed slower cognitive decline. Autopsy data from 948 individuals who passed away during the study revealed that those with richer cognitive experiences retained better memory and thinking abilities, despite brain changes typical of Alzheimer’s. This concept is termed cognitive reserve, which implies that learning enhances neural pathways, enabling the brain to withstand damage from aging or disease.

The study does not establish direct causation but identifies a correlation between mental stimulation and reduced dementia risk. Other research, such as studies connecting musical instrument playing to brain health, supports similar conclusions. Researchers are also testing “speed training” methods through digital programs that challenge users to process visual information rapidly amid increasing distractions. As dementia prevalence rises globally, with over 57 million cases worldwide—including 9.8 million in Europe—the need for preventive strategies becomes more urgent. Alzheimer’s Disease International estimates that one new case is diagnosed every 3.2 seconds, underscoring the growing challenge of this condition.

“It’s not just one activity. It’s more about discovering activities that resonate with personal interests and committing to them long-term rather than trying a few,” Zammit said.