GOOD HYDRATION AND BRAIN HEALTH – THE CONNECTION

Drinking enough water or being adequately hydrated is important for maintaining brain health and optimizing cognitive function. When we do not have enough water in our bodies we get dehydrated and this can have a negative impact on the brain’s structure and its functions.

To start with, water is essential for maintaining the health of brain cells. It helps in the transport of nutrients to cells and the removal of toxins and waste from cells. Dehydration can lead to a decrease in brain volume, which can affect cognitive performance and increase the perception of mental fatigue.  Adequate hydration is also crucial for the production and function of neurotransmitters, which are chemicals that help brain cells to communicate.

Cognition is the process of thinking, learning and understanding. Dehydration, even at mild levels, can negatively impact cognitive abilities such as concentration, attention and alertness. Studies have shown that a 1-2% loss in body water can significantly affect cognitive performance.

Memory (our ability to remember or recall what has been learned or retained) is another brain function that can be negatively affected by dehydration. Both short-term and long-term memory can be affected by inadequate hydration. Proper hydration helps maintain memory function and the rate at which the brain can take in, understand, and respond to information.

Research highlights the benefits of good hydration for mood and mental health. Dehydration is associated with mood disturbances, including increased feelings of tension, anxiety, and fatigue. Proper hydration helps maintain emotional balance. Hydration can also influence stress and anxiety levels. Studies have found that individuals who are adequately hydrated report lower levels of perceived stress and anxiety. Thus, we can see how important it is to drink enough water to keep our brains functioning well and stay mentally alert.

One practical way to stay hydrated to enhance brain health, is to plan to drink water regularly throughout the day rather than consuming large amounts at once. Consistency is key and investing in a good water bottle to keep water handy at all times is a good strategy.

Staying properly hydrated is important for maintaining a healthier and much more efficient body and brain for accomplishing day to day tasks.

If you have specific hydration or dietary requirements, you can consult a registered dietitian to provide personalized guidance.

This article was compiled by the www.fullproofnutrition.com team and expertly reviewed by Laurene Boateng (PhD, RD).