As people age, many notice changes in memory, concentration, and speed of thinking. Although some of these changes are natural, contemporary scientific research shows that cognitive decline is not inevitable. One of the best-studied and most effective preventive approaches is the FINGERS model—a multidomain intervention developed in Finland that combines several key lifestyle areas. The name FINGERS is an acronym for Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability, and it includes five main domains: nutrition, physical activity, cognitive stimulation, social engagement, and management of vascular risk factors. I learned about the model at a psychiatric conference in Sofia in 2021, and it immediately captured my interest with its comprehensiveness and simplicity. If we look at the meaning besides the abbreviation, we think of “fingers”. And since I am a highly visual person, I found it easy to remember — each finger of the hand is equally important and corresponds to one of the main domains.
Nutrition
Nutrition plays a crucial role in brain health. The FINGERS model is based on principles similar to the Mediterranean and Nordic diets, which are associated with a lower risk of cognitive decline and dementia. These diets provide the brain with essential nutrients, reduce inflammation, and support healthy blood vessel function.
Practical guidelines:
- Consuming more vegetables, fruits, and whole grains
- Regular intake of fish rich in omega-3 fatty acids
- Using plant-based fats such as olive oil and rapeseed (canola) oil
- Limiting sugar, salt, and highly processed foods
- Maintaining a regular eating pattern
Physical Activity
Regular physical activity is one of the strongest protective factors for the brain. Movement improves blood circulation, stimulates the formation of new neural connections, and supports memory and executive functions. The FINGERS model recommends a combination of aerobic exercise and strength training, tailored to age and physical condition.
Example activities:
- Brisk walking, swimming, or cycling at least 3–5 times per week
- Light strength exercises using resistance bands or weights
- Balance and flexibility exercises such as yoga or tai chi
- An active daily routine—climbing stairs, gardening, walking
Cognitive Stimulation
The brain, like muscles, needs regular “training.” Cognitive stimulation maintains mental flexibility, attention, and memory. Within the FINGERS framework, both structured exercises and diverse intellectual challenges in everyday life are encouraged. It is important to note that any new activity practiced consistently over time eventually becomes routine and loses some of its stimulating power. Therefore, it is essential to continually challenge ourselves with activities that are atypical or unfamiliar to us.
Example activities:
- Solving crosswords, Sudoku, and logic puzzles
- Reading books and discussing what has been read
- Learning new skills—such as a language, a musical instrument, or digital skills
- Using specialized programs or applications for brain training
Social Engagement
Social contacts have a direct impact on mental and cognitive health. Isolation and loneliness are associated with faster cognitive decline, while an active social life supports emotional well-being and stimulates thinking processes.
Example activities:
- Regular meetings with friends and family
- Participation in clubs, interest groups, or volunteer initiatives
- Group sports or cultural activities
- Maintaining social connections through digital means
Management of Vascular Risk Factors
Brain health is closely linked to the health of the cardiovascular system. High blood pressure, diabetes, high cholesterol, and smoking increase the risk of cognitive decline. The FINGERS model emphasizes active management of these risks through medical monitoring and a healthy lifestyle.
Example activities:
- Regular preventive check-ups and monitoring of key health indicators
- Adhering to medical advice and prescribed treatments
- Quitting smoking and limiting alcohol consumption
- Managing stress through relaxation and adequate rest
Other Influences
Infections
After recovering from COVID-19, some people continue to experience symptoms for weeks or even months following the acute infection—a condition known as post-COVID syndrome or “long COVID.” Among the most commonly reported complaints are fatigue, shortness of breath, sleep disturbances, and so-called brain fog—a subjective feeling of slowed thinking and difficulties with concentration and memory. The approach to post-COVID cognitive impairments should be comprehensive. Gradual resumption of physical activity, cognitive stimulation, good sleep hygiene, and stress management are recommended.
Sleep
Sleep deprivation and poor sleep quality have a serious negative impact on human cognitive abilities. Sleep is a crucial process for brain recovery, during which memories are consolidated, information from the day is processed, and the balance of neural connections is maintained. When sleep is insufficient or fragmented, these processes are disrupted, leading to reduced concentration, attention, and decision-making ability. People who do not sleep well often experience difficulties in learning and retaining new information, slower thinking, and decreased mental flexibility. In addition, lack of sleep increases the number of errors and reduces the ability to solve complex problems, as the prefrontal cortex of the brain—responsible for logic, planning, and self-control—functions less efficiently. Emotional regulation is also impaired, which can result in irritability, mood swings, and impulsive behavior, further interfering with cognitive performance. Over time, chronic sleep deprivation is associated with a higher risk of long-term cognitive decline and neurodegenerative diseases. Therefore, getting sufficient and high-quality sleep is essential for maintaining optimal cognitive functioning, mental clarity, and overall psychological well-being.
Take measures now!
The FINGERS model demonstrates that preventing cognitive decline is possible through a comprehensive and balanced approach. Combining healthy nutrition, physical activity, mental stimulation, social engagement, and control of risk factors creates a solid foundation for maintaining brain health and quality of life in later years. Most importantly, these changes are practical and accessible for most people and can be introduced gradually, offering long-term benefits.
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