Brain Health
Brain health is measurable, modifiable, and worth discovering early.
Brain fog, memory changes, poor sleep, and slower thinking are rarely a single problem with a single fix. They are the visible output of sleep, vascular and metabolic health, hormones, nutrient status, mood, hearing, and any prior head injury. Raeven Health evaluates those drivers together, by secure telehealth across Florida, with Dr. Marissa McCarthy, a physiatrist sub-specialty board certified in brain injury medicine.
What brain health actually means
Brain health is how reliably the brain does its work: holding attention, retrieving words and names, learning, regulating mood, sleeping deeply, and recovering after stress or injury. It is a physiological state rather than a fixed trait, which is why it moves when the inputs move. That is also the reason a careful evaluation is useful long before anyone is worried about dementia. Change is easier to influence while it is still subtle.
It is also why "brain health" is not one specialty's territory. Sleep medicine, rehabilitation medicine, endocrinology, cardiometabolic care, and psychiatry each own part of the picture. A brain health evaluation is the work of putting those parts into one plan with named targets.
The drivers we evaluate
Sleep
Deep sleep drives glymphatic clearance, memory consolidation, and next-day attention. Untreated sleep apnea and chronic short sleep are two of the most reversible threats to cognition, and both are routinely missed.
Vascular health
The brain receives roughly a fifth of cardiac output. Blood pressure, lipids, and vascular stiffness shape white matter integrity over decades, which is why midlife hypertension shows up in late-life cognition.
Metabolic health
Insulin resistance, visceral adiposity, and glycemic variability are associated with slower processing and hippocampal change. Metabolic care is brain care.
Hormones and thyroid
Thyroid dysfunction, perimenopausal change, low testosterone, and cortisol dysregulation all present as fog, low drive, poor sleep, and word-finding difficulty before they present as lab abnormalities anyone has looked for.
Head injury history
Concussion and traumatic brain injury change recovery capacity, and repeated injury compounds it. Prior head injury deserves to be documented, evaluated, and factored into every later plan.
Nutrition and nutrient status
Omega-3 status, B12, iron, vitamin D, and overall dietary pattern influence membrane function and energy metabolism. Deficiency correction produces clearer gains than layering supplements on an unmeasured baseline.
Movement
Aerobic exercise and resistance training are among the most reliably beneficial interventions for executive function, in part through brain-derived neurotrophic factor and vascular adaptation.
Mood, stress, and hearing
Depression, chronic stress, social isolation, and untreated hearing loss are each independently associated with cognitive decline, and each is treatable.
How a brain health evaluation works here
History that goes deep
Symptom timeline, every prior head injury, sleep pattern, medications and supplements, alcohol, mood, occupational cognitive load, family history, and what specifically feels different from baseline.
Objective measures
Validated cognitive screening, sleep assessment, vision and vestibular screening where relevant, and metabolic, inflammatory, nutritional, thyroid, and hormonal laboratory testing when clinically appropriate.
A plan with named targets
Two or three highest-yield domains, defined interventions, and the measures that will be re-checked so progress is observable rather than assumed.
Longitudinal follow-up
Repeat measures, adjustment over time, direct physician messaging, and a rapid pathway if a new head injury or acute cognitive change occurs.
Laboratory testing, imaging, medications, pharmacy dispensing, supplements, wearable devices, and outside vestibular, vision, or physical therapy services are billed separately from membership and consultation fees.
Who this care is for
Adults noticing brain fog, word-finding trouble, or a change in focus. Executives and other professionals whose work is cognitively demanding. Athletes at any level with concussion history or return-to-play questions. People recovering from a slip-and-fall, motor vehicle, or on-the-job injury. First responders and service members. Adults with a family history of Alzheimer's disease who want their own risk profile understood while it is still modifiable. Older adults focused on cognitive longevity and fall prevention.
Common questions about brain health
What is brain health?
Brain health describes how well the brain performs its core work: attention, memory, processing speed, mood regulation, sleep, and recovery after stress or injury. It is not fixed. Sleep quality, blood pressure, blood sugar, hormones, hearing, physical activity, alcohol, head injury history, and mood all measurably shift how the brain functions day to day.
What causes brain fog?
Brain fog is a symptom, not a diagnosis. Common contributors include untreated sleep apnea or chronic short sleep, thyroid and hormone changes, iron or B12 deficiency, insulin resistance, medication effects, depression and anxiety, chronic pain, long COVID, and unresolved concussion. An evaluation looks for the drivers that are present in that specific person rather than treating the label.
Can brain health be measured?
Parts of it can. A brain health evaluation typically combines a detailed history, validated cognitive screening, sleep assessment, and laboratory measures of metabolic, inflammatory, nutritional, and hormonal status. Those measures create a baseline so change over time can be tracked instead of guessed at.
Is brain health care available by telehealth?
Yes. Raeven Health is a concierge telemedicine practice serving patients throughout Florida. History taking, cognitive screening, sleep review, lab interpretation, treatment planning, and longitudinal follow-up are all delivered by secure video. Imaging, in-person testing, and hands-on therapy are coordinated locally when they are needed.
Can dementia or Alzheimer's disease be prevented?
No one can guarantee prevention. Large studies do show that a meaningful share of dementia risk is associated with modifiable factors, including hearing loss, hypertension, physical inactivity, diabetes, smoking, excess alcohol, depression, social isolation, air pollution, obesity, and traumatic brain injury. Addressing those factors earlier is the most credible risk-reduction strategy available.
What does a brain health program include at Raeven Health?
Raeven Resilience begins with a deep baseline covering history, cognitive measures, sleep, vision and vestibular function, labs, and lifestyle. From there it moves through an eight-week foundation phase, a progressive build phase with reaction and dual-task work, and annual re-baselining. Laboratory testing, medications, pharmacy dispensing, supplements, wearables, and outside therapy services are billed separately.
Further reading in The Raeven Review
- Alzheimer's prevention: what the evidence supports
- The science behind cognitive edge for high performers
- Sleep hygiene and cognitive recovery
- Memory loss is not where Alzheimer's starts
- Why every concussion deserves an evaluation
- Creatine and the brain
This page is educational and is not medical advice. No program, supplement, or device can prevent concussion or guarantee a cognitive outcome. Any brain health plan should be built with a physician against your own history, medications, laboratory values, and goals.