Recent research suggests that the cognitive advantages gained from enriching and fulfilling life experiences can be diminished by both physical and psychological stress. Chronic or intense stress is linked to difficulties in participating in recreational and physical activities, decreased social engagement, and a heightened risk of developing dementia.
Stress could be working against your attempts to strengthen and maintain cognitive reserve. Research has indicated that individuals with higher cognitive reserve index (CRI) scores tend to experience slower cognitive decline, even in cases of Alzheimer’s disease. These scores are determined by engaging in mentally stimulating activities, achieving higher levels of education, pursuing complex careers, staying physically active, and fostering strong social connections.
The research investigated the relationship between CRI scores, cognitive function, and Alzheimer’s disease biomarkers in 113 participants from a memory clinic. The study also examined the impact of perceived stress, alongside physiological markers of psychological stress, specifically saliva cortisol levels.
The researchers found that while greater cognitive reserve enhanced cognitive function, physiological stress appeared to weaken this effect. Higher CRI scores were linked to improved working memory in individuals with normal cortisol levels, but this benefit was absent in those with elevated cortisol levels, indicating high psychological stress.
To preserve healthy cognitive function, people can use stress management techniques like relaxation exercises, meditation, physical exercise, or therapy to lower the risk of cognitive decline. Engaging in intellectually challenging activities helps strengthen neural connections and boosts abilities in memory, problem-solving, and communication. It is essential to recognize the effect of stress on cognitive function.
To view the original scientific study click below:
Cognitive reserve, cortisol, and Alzheimer's disease biomarkers: A memory clinic study
People have long experimented with cold exposure in the hope of improving their health and extending their lives. Whether it's taking a cold shower, or plunging into an ice bath, deliberately exposing the body to cold has gained attention as a possible way to improve health. But scientists are still working to understand what happens inside the body. New research may offer an explanation, revealing how exposure to cold could activate metabolic processes that promote healthier cells and potentially extend lifespan.
Sodas, energy drinks, and other beverages with added sugar are common parts of many people’s diets. While sugary drinks have been linked to several types of cancer, their connection to stomach cancer has been less clear. Now, a large, long-term study suggests that drinking these beverages regularly may be linked to an increased risk of stomach cancer.
Muscles are essential to keeping the body healthy and functioning well. In addition to allowing us to move, they help regulate blood sugar, support metabolic health, and protect our joints while helping us remain independent. Yet, as we grow older, muscle strength and size naturally decline. This gradual loss can affect stability, raise the risk of falls, and make it take longer to bounce back after an injury or illness.