As people age, natural changes occur in the brain and mental functions also begin to alter.
With advancing age, the brain gradually undergoes degeneration, which can later manifest in conditions such as Alzheimer’s disease and dementia.
Research suggests that as people grow older, the speed of cognitive processes slows down and certain areas of the brain begin to shrink.
However, some everyday habits can accelerate brain ageing, significantly increasing the risk of cognitive decline. Surprisingly, many of these habits are common and often considered harmless.
Neglecting heart health
Heart health is directly linked to brain health. A healthy heart supports proper blood flow to the brain, while cardiovascular strain can impair this supply. Similarly, people with high blood pressure face a higher risk of developing dementia.
Spending too much time sitting
Prolonged sitting leads to changes in parts of the brain that are crucial for memory. Studies show that excessive sitting can cause thinning of the medial temporal lobe, a region essential for memory. The simplest solution is to remain physically active as much as possible.
Lack of physical exercise
Spending long hours sitting increases the risk of dementia, and even brief hourly walks may not be enough to offset the damage. To protect brain health, regular exercise must become a habit.
A recent study found that individuals who engaged in brisk walking for 30 minutes, four times a week, showed noticeable improvement in cognitive functions within a few months. Exercise stimulates the growth of brain neurons, improving memory while also benefiting overall physical health.
Not reading regularly
A study published in the journal Neurology found that regular reading can reverse aspects of cognitive decline and may protect against Alzheimer’s disease and dementia. The research, conducted by the University of California, included around 800 participants with an average age of 76.
Brain scans and memory tests were conducted, alongside questions about participation in three activities over the past year: reading (newspapers, magazines or books), playing games (such as board games or cards), and attending community classes. Each mental activity was associated with an average reduction in brain age of 13 years — 17 years in men and 10 years in women.
Not engaging in mental exercise
Learning a new skill, language or subject benefits multiple brain cells. Adopting hobbies, such as learning to play a musical instrument, can enhance thinking abilities in middle age.
New tasks may feel difficult at first, but the more challenging the activity, the greater the benefit for the brain.
Smoking
Tobacco contains numerous chemicals that are harmful to the brain. This is why smoking significantly increases the risk of cognitive decline and dementia.
Avoiding social interaction
Social isolation has a negative impact on brain health. Research shows that regularly meeting friends or relatives can reduce the risk of cognitive decline by up to 47 per cent.
Social interaction lowers stress and reduces feelings of loneliness — both of which accelerate brain ageing.
Lack of sleep
Sleep deprivation makes even routine tasks challenging for the brain.
Concentration becomes difficult and memory is adversely affected. For optimal brain health, seven to nine hours of sleep each night is essential.
Poor diet
Diets high in fats and sugar are harmful to brain function. In contrast, foods such as fruits, vegetables, lentils, fish and olive oil are particularly beneficial.
Drinking one cup of tea or coffee daily has also been shown to support brain health.
Note: This article is based on findings published in medical journals. Readers are advised to consult their healthcare provider for personalised medical advice.
