Can electrolytes improve brain function?

Yes, electrolytes can indeed improve brain function. According to Louisa Nicola and other experts, electrolytes are crucial for the proper functioning of neurons, which are the nerve cells in our brain. Sodium, potassium, and magnesium are key electrolytes that help neurons fire action potentials—electrical signals essential for cognitive tasks like focus, attention, and learning 1 2 .

Moreover, magnesium, a significant electrolyte, has been found to restore critical brain plasticity and improve cognitive function. Studies have shown that improving magnesium levels in older adults can potentially reverse brain aging by over nine years, indicating its profound impact on brain health 3 .

Proper hydration is also essential for maintaining optimal brain performance as even mild dehydration can significantly decrease cognitive capacity. Alongside water, replacing electrolytes such as sodium, potassium, and magnesium lost through sweat is vital for maintaining cognitive performance 4 .