Memory Boosters: Cognitive Exercises to Elevate Your Brain Performance

By Dr Eleni Margioti, Neuropsychology Lead – The Brain & Performance Centre, A DP World Company

Memory lapses and slower recall are often accepted as an inevitable part of ageing, but a growing body of research tells a more encouraging story. Cognitive decline is not a fixed timeline; it is heavily influenced by daily habits, and some of the most effective of those are also the simplest. The brain responds to how we use it, at every age.

The principle behind this is neuroplasticity – the brain’s ability to form new connections and reorganise itself in response to new demands, well into later life. Just as muscles respond to resistance training, the brain responds to being challenged in ways that are unfamiliar or slightly challenging. The key word is “slightly”. Exercises that feel effortless stop offering much benefit once they become routine, which is why variety matters as much as consistency.

Start with working memory

Working memory is the ability to hold information in mind while actively using or manipulating it. We rely on it throughout the day, for example, keeping track of a conversation while formulating a response, holding a PIN in mind long enough to enter it, or mentally reorganising information we have just heard.

Simple daily challenges can exercise this system: repeat a short sequence of numbers backwards, count backwards from 100 in sevens, or hear a short list of items and then recall them in reverse order. As these tasks become easier, gradually increase the difficulty to keep your working memory challenged.

These exercises take only a few minutes and place demands not only on working memory, but also on attention and executive control. The aim is not simply to get better at a particular exercise, but to regularly challenge the brain to hold, manipulate, and work with information.

Make cognitive exercise challenging

Not all cognitive activities challenge the brain in the same way. Sudoku, card games and strategy games can be particularly engaging because each game presents a different problem to solve, requiring attention, planning, working memory and flexible thinking. Playing cards with others can add another layer of challenge through social interaction, decision-making and adapting to another person’s moves.

Puzzles can also provide useful cognitive stimulation, but repeatedly completing the same type of familiar task may become less demanding with practice. The key is variety and progressive challenge: choose activities that remain engaging, change from one attempt to the next, and require you to think, adapt and develop new strategies.

Learn something with no practical use

There is a strong case for taking up a skill purely because it is unfamiliar – a new language, a musical instrument, even learning to draw. These activities activate multiple brain regions at once: memory, coordination, auditory or visual processing, and sustained attention. The learning curve is uncomfortable at first, and that discomfort is largely the point. It is the mental effort of building a new skill, rather than eventual mastery of it, that appears to matter most for neuroplasticity and cognitive reserve.

Do not separate the mind from the body

Cognitive exercises work best alongside physical movement, not instead of it. Activities that combine the two, dancing, tai chi, or even walking while doing simple mental arithmetic, ask the brain to coordinate movement and thought at the same time, which is a more demanding and more effective form of stimulation than either done alone. Aerobic exercise also increases cerebral blood flow and supports the release of neurotrophic factors involved in forming new neural connections.

Make it social

Conversation is one of the most complete cognitive workouts available. It draws on memory, language, attention and emotional interpretation, often within a single sentence. Group activities like a book club, a card game, volunteering, combine social engagement with mental challenge, and social isolation has been consistently linked with an increased risk of future cognitive decline.

Protect the sleep that consolidates it

Mental exercise only pays off if the brain has the opportunity to consolidate what it has practised. Memory consolidation takes place largely during deep sleep, alongside the clearance of metabolic waste products. Maintaining a consistent sleep schedule and good-quality sleep is an important part of cognitive health. Cognitive training provides the challenge; sleep helps the brain consolidate and retain what it has learned.

Consistency over intensity

The most common mistake is treating cognitive exercise as an occasional activity rather than a habit. An hour of puzzles once a week does far less than ten- or fifteen-minutes woven into daily life. Pairing a new mental exercise with an existing routine over morning coffee, during a commute, or before bed, tends to be what makes it stick.

None of these strategies can guarantee the prevention of cognitive decline, and persistent or concerning memory changes should always be discussed with a healthcare professional. However, the brain remains remarkably adaptable throughout life. The most effective approaches do not need to be complicated; they simply encourage the brain to keep doing what it does best: learning, adapting, and responding to new challenges.