Memory and cognitive decline may begin much earlier than commonly thought—as early as ages 40 to 50, reports infohub.kz.
A large-scale study published in Medical News Today has shown that the first subtle changes in brain function occur long before obvious symptoms of dementia appear. Previously, it was believed that noticeable weakening of mental abilities was a hallmark of old age only.
The study involved a large group of volunteers. Researchers regularly assessed participants' information processing speed, working memory, and attention using a series of specialized tests. Data analysis revealed that aging processes in neural tissue and the accumulation of risk factors develop gradually, affecting critical brain regions.
The authors emphasize that detecting early signs of memory decline gives doctors and patients a head start. In the early stages of cognitive decline, lifestyle modifications can be effective—such as controlling blood pressure, ensuring quality sleep, maintaining physical activity, and following a balanced diet.
The scientists plan to continue monitoring participants to identify specific biomarkers that could accurately predict dementia risk before the first clinical symptoms appear.