What does cerebrospinal fluid do?
Cerebrospinal fluid (CSF) is a dynamic fluid surrounding the brain and spinal cord that contributes to functions such as mechanical protection, pressure balance, and the transport of metabolic waste. Its production and circulation are tightly regulated.
Does dehydration affect the brain?
Significant fluid loss can be associated with headache, fatigue, reduced attention, dizziness, and a decline in physical performance. Especially in older age, a diminished sense of thirst, hot weather, diarrhea-vomiting, and diuretic use can increase the risk of dehydration.
Is “the more water, the better” true?
No. Excessive water consumption can also dangerously lower sodium levels in the blood. Daily requirements vary based on body size, air temperature, physical activity, kidney and heart diseases, and medications used.
Where is the stronger evidence in brain health?
Regular exercise, quality sleep, blood pressure control, avoiding smoking, maintaining metabolic health, and social-cognitive activity are stronger components of brain health.
