Memory relies on two complementary mechanisms: learning, which enables us to store new information, and retrieval, which enables us to recall it at the right moment. This complex process can be influenced by numerous factors, ranging from sleep and diet to stress and physical activity.
Sleep: essential for consolidating memories
Sleep plays a key role in memory formation. It is particularly during the deep sleep phases that the brain consolidates information and stores it in long-term memory. When sleep is insufficient or of poor quality, information learnt during the day is not retained as effectively.
Stress, which can disrupt cognitive abilities
During periods of stress, the body secretes more cortisol, a hormone that can disrupt attention, concentration and memory. When stress becomes chronic, it can also impair the functioning of the hippocampus, an area of the brain involved in memory formation.
Age: a natural factor in memory changes
As we get older, certain cognitive functions change naturally. The speed at which we process information may slow down, whilst the ability to form new neural connections gradually diminishes. These changes are part of the body’s natural ageing process and do not necessarily indicate a medical condition.
Diet and hydration: essential for healthy brain function
The brain needs a regular supply of nutrients to function properly. B vitamins, omega-3s, iron and magnesium, in particular, help to maintain balanced cognitive function. Hydration also plays an important role: when water intake is insufficient, concentration and alertness may be impaired.
Physical activity: a boost for cognitive function
When practised regularly, physical activity promotes blood circulation, including to the brain. It thus helps to support oxygenation of the brain and the proper functioning of cognitive abilities. Even a gentle activity, such as walking, can form part of a routine that benefits memory and concentration.












