Junk food: the enemy of our brain
The latest research is revealing a deep link between nutrition and our brain health
It is now known that a diet rich in ultra-processed foods, fats and sugars can have a negative impact on our physical health. But the latest scientific research is revealing an even deeper link between food and our brain health.
The role of acetylcholine
How can food affect our brain? The answer lies in an important neurotransmitter, acetylcholine. This chemical, essential for the transmission of nerve signals, plays a key role in learning and memory processes.
Animal studies have shown that a diet high in fat and sugar can reduce acetylcholine production in the brain, thus compromising the function of neural networks involved in memory. In particular, the medial septum, a region of the brain that regulates acetylcholine production, seems to be particularly sensitive to the effects of an incorrect diet.
The effects on childhood
In particular, the consequences of a nutrient-poor diet can be particularly severe in childhood. Children’s brains are developing and an acetylcholine deficiency can compromise the formation of neural connections and learning ability.
The Australian experiment: a first warning
A group of Australian researchers conducted a study on a group of university students, feeding them for eight days with high-calorie and low-nutrient foods such as burgers, fries and sweets. At the end of the experiment, participants showed a significant decrease in their cognitive abilities, especially memory.
The link with increased attention disorders
It is also interesting to note that the increase in cases of attention deficit hyperactivity disorder (ADHD) in recent decades coincides with the increase in consumption of ultra-processed foods. Although further research is needed to establish a causal link, some studies suggest that a diet high in sugars and fats may contribute to the development of this disorder, By altering the functioning of neurotransmitters involved in attention and concentration.
What can we do?
To protect our mental health and optimize our cognitive abilities, it is essential to adopt a healthy and balanced diet. Here are some practical tips:
- Limit consumption of ultra-processed foods: Give preference to fresh, seasonal and low-processed foods
- Increase consumption of fruits, vegetables and whole grains: These foods are rich in essential fibers, vitamins and minerals for the well-being of the brain
- Drink plenty of water: Water is essential for moisturizing the body and promoting cognitive functions
- Exercise: Regular exercise stimulates the production of neurotransmitters, such as dopamine and serotonin, which improve mood and cognitive function