5. Eat a healthy diet

The food you eat can have a big impact on your cognitive abilities. A diet that is rich in fruits, vegetables, whole grains, and healthy fats can provide the nutrients your brain needs to function properly. 

In particular, foods that are high in omega-3 fatty acids, such as fish and nuts, have been shown to support brain health and improve cognitive function. 

On the other hand, a diet that is high in sugar and processed foods can have negative effects on the brain, so it is important to eat a balanced and healthy diet.