Water and Brain Health

Pamela Redline • March 3, 2022

Pamela Redline

March 3, 2022

Continuing our Water Dare series, let’s talk cognitive functioning. When we connect dehydration and cognitive functioning, we are talking about effects such as slower reaction times and lower accuracy. Hearing these words, we may be thinking about sports and other physical activities or exercise. However, it actually extends to all aspects of life.

 

Consider the importance of reaction time when you’re driving down the highway or even downtown to the grocery store. Tasks relying on memory and attention, such as the ability to recall where you left your car keys, will be affected. What about the implications towards slowing down your decision-making and problem solving when daily stressors arise? All of these are examples of times when we need our cognitive functioning to be at its best.

 

In a recent analysis, two researchers in medicine and exercise found that dehydration will hinder brain health by slowing down our cognitive functioning. In other words, drinking a sufficient amount of water has been shown to keep our brains functioning efficiently. Most research has focused on the effects of full dehydration, meaning there is a loss of at least 2% of body water. As minimal as that may already seem, mild dehydration is classified as a loss of only 1-2%. The analysis referenced above provided scientific evidence that even mild dehydration would cause these problems to arise!

 

Drinking a sufficient amount of water each day is crucial for quality of life. Make the change with us! In our last post, we challenged you to begin keeping track of how much water you are currently drinking. Today, we challenge you to step onto the path of improving your brain functioning by consciously drinking an extra cup or two of water each day.

 

Interested in delving into the physiological effects of dehydration? Click Here to read the blog from our sister company, Redline Exercise Rx.


Quick Blurb: Did you know that mild dehydration occurs within the body when there is a water loss that is as small as 1-2%?! So, what happens to your brain when dehydration occurs? Slower reaction times and lower accuracy. Read this week’s blog to learn what this means for you and your cognitive wellness. 



References: Wittbrodt, M. & Millard-Stafford, M. (2018). Dehydration impairs cognitive performance: A meta-analysis.  Medicine & Science in Sports & Exercise, 50, 2360-2368. https://doi.org/10.1249/MSS.0000000000001682

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Post-Traumatic Stress Disorder (PTSD) is a mental health condition that can develop after experiencing or witnessing a traumatic event. While PTSD is often associated with military combat veterans, it can affect anyone who has experienced trauma, including survivors of accidents, natural disasters, violence, abuse, serious illness, or the sudden loss of a loved one. It is normal to experience fear, anxiety, or emotional distress following a traumatic event. For many people, these feelings gradually improve over time. However, when symptoms persist for more than a month and begin interfering with daily life, relationships, work, or overall well-being, PTSD may be present. Common symptoms of PTSD include intrusive memories, flashbacks, or nightmares related to traumatic events, avoidance of people, places, or situations that trigger memories of the trauma, negative changes in mood, thoughts, or increased anxiety, irritability, hypervigilance, or difficulty sleeping. PTSD affects each person differently. Some individuals experience symptoms immediately after a traumatic event, while others may not develop symptoms until months or even years later. The condition can impact physical health as well, contributing to fatigue, headaches, chronic stress, and other health concerns. One of the most important things to understand about PTSD is that it is not a sign of weakness. PTSD is a recognized medical condition that can affect people of all ages, backgrounds, and professions. Seeking help is a sign of strength, not failure. The good news is that effective treatments are available. Mental health professionals often use evidence-based therapies such as Cognitive Processing Therapy (CPT), Prolonged Exposure Therapy (PE), and Eye Movement Desensitization and Reprocessing (EMDR) to help individuals process trauma and reduce symptoms. Support groups, healthy lifestyle habits, exercise, stress-management techniques, and strong social connections can also play an important role in recovery. Raising awareness about PTSD helps reduce stigma and encourages those who are struggling to seek support. By understanding the signs and symptoms, we can create more compassionate communities where people feel safe asking for help. Recovery is possible. With proper treatment, support, and understanding, many individuals living with PTSD go on to lead healthy, productive, and fulfilling lives. Brain Builder Pros and Redline Exercise Rx have been providing treatment for TBI's and neurological injuries for twenty-five years. Please get in touch with us if you have any questions or if we can be of assistance to you in any way. References National Institute of Mental Health (2025) Post-Traumatic Stress Disorder (PTSD). U.S. Department of Veterans Affairs, National Center for PTSD (2025). PTSD Basics. American Psychiatric Association (2025). What Is PTSD? Substance Abuse and Mental Health Services Administration (SAMHSA) (2025). PTSD and Trauma. U.S. Department of Veterans Affairs, National Center for PTSD (2025) Overview of Psychotherapy for PTSD.
June 17, 2026
 June is National Safety Month, a time dedicated to raising awareness about preventing injuries at work, at home, and during recreational activities. While safety should be a year-round priority, this month serves as an important reminder that many injuries are preventable with the right precautions. For athletes and active individuals, one of the most effective ways to reduce the risk of serious injury is by using proper protective equipment. Whether you're riding a bicycle, skateboarding, participating in contact sports, or enjoying outdoor recreation, wearing a properly fitted helmet can significantly reduce the risk of head injuries. Safety experts consistently emphasize that helmets are one of the most effective pieces of protective equipment available for preventing serious brain injuries during sports and recreational activities. Falls are another leading cause of injuries across all age groups. Many falls occur during sports, exercise, or recreational activities and can result in sprains, fractures, concussions, and other serious injuries. Maintaining awareness of your surroundings, using proper equipment, keeping play areas free of hazards, and following safety guidelines can greatly reduce these risks. Falls remain one of the most common causes of preventable injuries, making fall prevention an important focus of National Safety Month. Parents, coaches, and athletes can further improve safety by ensuring equipment fits properly, staying hydrated, warming up before activity, and encouraging players to speak up about pain or injuries rather than trying to "play through" them. Creating A culture of safety helps keep athletes healthy, active, and participating in the activities they enjoy. Safety is an essential part of every activity. By combining proper training, appropriate protective gear, and awareness of potential hazards, participants can reduce their risk of injury while maximizing fun and performance. This National Safety Month, take a moment to evaluate your own safety habits. A helmet, proper equipment, and a little extra awareness can make all the difference. Brain Builder Pros and Redline Exercise Rx have been providing treatment for TBI's and neurological injuries for twenty-five years. Please get in touch with us if you have any questions or if we can be of assistance to you in any way. References DEFY Neuro Rehab; National Safety Council (2026) National Safety Month; Centers for Disease Control and Prevention (CDC) (2025). Safety Guidelines: Helmets (HEADS UP Program) Centers for Disease Control and Prevention (CDC) (2025). Preventing Traumatic Brain Injury (TBI). Centers for Disease Control and Prevention (CDC). (2025). Pedestrian, Bicycle, and Motorcycle Safety: Bicycle Safety. Centers for Disease Control and Prevention (CDC) (2025). Youth Sports Concussion Training. American College of Surgeons (2023); Bicycle Safety and the Promotion of Bicycle Helmet Use.
June 17, 2026
Traumatic Brain Injury (TBI) is a significant public health concern and a leading cause of death and disability worldwide. A TBI occurs when an external force disrupts normal brain function, often resulting from a blow, jolt, or penetrating injury to the head. The severity of a TBI can range from mild concussions to severe injuries that cause permanent neurological impairment. TBIs affect individuals of all ages and can have profound physical, cognitive, emotional, and social consequences. The Centers for Disease Control and Prevention (CDC) defines a traumatic brain injury as an injury that affects how the brain works. TBIs can occur from falls, motor vehicle accidents, sports injuries, assaults, military combat exposure, or any event that causes the brain to move violently within the skull. TBIs are commonly categorized into three levels: A mild TBI may involve a brief alteration of consciousness, confusion, dizziness, headache, memory problems, or balance disturbances. Although many individuals recover completely, some experience persistent symptoms known as post-concussion syndrome. Moderate injuries involve longer periods of unconsciousness and more significant neurological symptoms. Recovery often requires extensive rehabilitation and ongoing medical management. Severe TBIs can result in prolonged unconsciousness, coma, permanent disability, or death. These injuries often require intensive medical intervention and long-term support. TBI remains a major cause of morbidity and mortality in the United States. According to the CDC, more than 69,000 TBI-related deaths occurred in 2021, averaging approximately 190 deaths per day. Falls are the leading cause of TBI-related hospitalizations, particularly among older adults, while motor vehicle crashes, assaults, and firearm-related injuries are also significant contributors. Certain populations are at increased risk: older adults, young children, athletes participating in contact sports, military personnel and veterans, individuals with previous TBIs and people taking anticoagulant medications (blood thinners). Clinical symptoms may vary depending on injury severity and the area of the brain affected. Physical symptoms can include headache, dizziness, balance impairments, nausea and vomiting, visual disturbances, sensitivity to light, noise, and fatigue. Cognitive symptoms may include memory deficits, reduced concentration, slowed information processing, impaired judgment, and executive function difficulties. Emotional and behavioral symptoms can include anxiety, depression, irritability, emotional instability, personality changes, and social withdrawal. Brain injury occurs through both primary and secondary mechanisms. Primary injury occurs at the moment of impact and includes skull fractures, brain contusions, diffuse axonal injury, and intracranial hemorrhage. Secondary injury develops hours to days after the initial trauma and may involve cerebral edema, inflammation, reduced cerebral blood flow, increased intracranial pressure, and metabolic dysfunction. These secondary processes often contribute significantly to long-term neurological deficits. Neuroplasticity and recovery after TBI are largely dependent on the brains ability to reorganize and form new neural connections. Neuroplasticity allows surviving brain regions to compensate for damaged areas through structural and functional adaptation. Research demonstrates that targeted rehabilitation can enhance neuroplastic changes and improve outcomes. Factors influencing recovery include age, injury severity, pre- existing health conditions, access to rehabilitation, family and social support and psychological well-being. Rehabilitation following a TBI is a critical component of recovery and often requires an interdisciplinary approach. Physical Therapists address mobility impairments, balance deficits, strength limitations and endurance challenges. Occupational therapy focuses on activities of daily living, self-care skills, community participation and adaptive equipment training. Speech-language pathologists help individuals improve communication skills, cognitive-linguistic abilities, and swallowing function. Neuropsychologists address memory impairments, attention deficits, executive dysfunction and emotional adjustment. Comprehensive rehabilitation programs have been shown to improve functional independence and quality of life. The Long-Term Consequences of a TBI are increasingly recognized as a chronic health condition rather than a single event. Individuals may experience long-term complications such as chronic headaches, fatigue, cognitive decline, sleep disturbances, depression and anxiety, increased risk of seizures, reduced employment opportunities, and social isolation. Research indicates that many individuals with moderate-to-severe TBI continue to experience disability years after injury. Some require assistance with daily activities, while others may need lifelong support services. Emerging directions in TBI rehabilitation science are expanding treatment possibilities. Emerging approaches include virtual reality-based therapy, robotics-assisted rehabilitation, brain-computer interfaces, tele-rehabilitation, and advanced neuroimaging-guided interventions. These innovations aim to improve accessibility and optimize recovery outcomes through individualized treatment strategies. In Conclusion, traumatic brain injury is a complex neurological condition with far- reaching physical, cognitive, emotional, and social consequences. Although recovery varies considerably among individuals, advances in acute medical care, rehabilitation science, and neuroplasticity research have improved outcomes for many survivors. Early diagnosis, comprehensive rehabilitation, and long-term support remain essential for maximizing functional recovery and quality of life following TBI. Brain Builder Pros and Redline Exercise Rx have been providing treatment for TBI's and neurological injuries for twenty-five years. Please contact us if you have any questions or if we can be of assistance to you in any way. References Centers for Disease Control and Prevention. Traumatic Brain Injury & Concussion, 2025. Facts About TBI, 2025.National Institute of Neurological Disorders and Stroke; Traumatic Brain Injury (TBI). Centers for Disease Control and Prevention; Symptoms of Mild TBI and Concussion, 2025. Matney C, et al. The Scope and Burden of Traumatic Brain Injury; National Academies Press, 2022. Matney C, et al. Rehabilitation and Long-Term Care Needs After Traumatic Brain Injury; National Academies Press, 2022. Su YRS, et al. Neuroplasticity After Traumatic Brain Injury; National Center for Biotechnology Information, 2016. Johns Hopkins Medicine.; Rehabilitation After Traumatic Brain Injury. CDC. Recovery from a Moderate or Severe TBI, 2025. Shen Y, et al. A Comprehensive Review of Rehabilitation Approaches for Traumatic Brain Injury; 2025.
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