Stroke & Brain Health
What Causes a Brain Aneurysm?
Amarish Dave, DO, Board-Certified Neurologist, explains what a brain aneurysm is, why one forms, which risk factors matter, and when it becomes an emergency.
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Neurology Video Library
Answers to Common Neurology Questions
Watch short, easy-to-understand videos from Amarish Dave, DO, Board Certified Neurologist, covering memory loss and dementia, migraine and headaches, neuropathy, dizziness, seizures, brain health, healthy aging, and other common neurological concerns.
Medical Disclaimer
The information on this website is educational and does not replace an individual medical evaluation. It does not diagnose any condition. If you believe you are experiencing a medical emergency, call 911.
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46 videos
Migraine & Headache
What Is Trigeminal Neuralgia?
Amarish Dave, DO, Board-Certified Neurologist, explains the sudden, electric shock-like facial pain of trigeminal neuralgia, its triggers, causes and treatment.
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Stroke & Brain Health
What Is a Carotid Ultrasound?
Amarish Dave, DO, Board-Certified Neurologist, explains what a carotid ultrasound checks, why neurologists order it, and what the results may mean.
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Memory & Dementia
New Alzheimer's Blood Tests: Who Should Get Them?
Amarish Dave, DO, Board-Certified Neurologist, explains newer Alzheimer's blood biomarkers, who should get an Alzheimer's blood test, and who should not.
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Memory & Dementia
Can Mom Live Alone with Dementia?
Amarish Dave, DO, Board-Certified Neurologist, explains how families can tell when someone with dementia is no longer safe living alone.
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Memory & Dementia
What Are the Stages of Dementia?
Amarish Dave, DO explains the stages of dementia—the 7-stage framework, early, middle and late dementia, and why progression varies from person to person.
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Dizziness & Balance
Vertigo: Inner Ear or Brain?
Amarish Dave, DO explains how to tell whether vertigo is coming from the inner ear or the brain—including BPPV, vestibular migraine, stroke warning signs and when to seek care.
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Memory & Dementia
What Is Sundowning?
Amarish Dave, DO explains sundowning—increased confusion, agitation and restlessness late in the day in people with dementia—and what caregivers can do.
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Sleep & Brain Health
What Is Restless Legs Syndrome?
Amarish Dave, DO explains restless legs syndrome—an urge to move the legs with uncomfortable sensations that worsen at rest and in the evening—and what causes it.
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Brain Health & Healthy Aging
What Is Parkinson's Disease?
Amarish Dave, DO explains what Parkinson's disease is—how it affects movement and the brain, common motor and non-motor symptoms, and how it is diagnosed.
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Memory & Dementia
Signs of Dementia: When Memory Changes May Be More Than Normal Aging
Amarish Dave, DO, Board-Certified Neurologist, explains important signs that memory or thinking changes may be more than normal aging.
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Memory & Dementia
What Happens After a Dementia Assessment?
Amarish Dave, DO explains what happens after a dementia assessment: reviewing results, looking for the cause, determining a diagnosis and building a treatment plan.
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Sleep & Brain Health
What Is Sleep Apnea?
Amarish Dave, DO explains what sleep apnea is—repeated pauses in breathing during sleep—and why it matters for sleep quality, daytime function and long-term brain health.
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Memory & Dementia
What Is the Difference Between Alzheimer's and Dementia?
Amarish Dave, DO explains the difference between dementia and Alzheimer's disease—dementia is an umbrella term for symptoms, while Alzheimer's is its most common cause.
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Brain Health & Healthy Aging
Why Do My Hands Shake?
Amarish Dave, DO explains why hands shake—essential tremor, Parkinson's disease and other causes—and how the pattern of the tremor points to the answer.
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Brain Health & Healthy Aging
What Happens to Your Brain During Stress?
Amarish Dave, DO explains the brain's stress response—from the amygdala and fight-or-flight reaction to cortisol—and how chronic stress can affect attention, memory and emotional regulation.
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Neuropathy & Numbness
Why Are My Feet Tingling? Is It Neuropathy? — Part 1
Amarish Dave, DO explains why feet tingle, when it points to peripheral neuropathy, and other possible causes—part 1 of a 3-part series.
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Migraine & Headache
What Is a Rebound Headache?
Amarish Dave, DO explains medication-overuse headache: how frequent use of acute headache medication can lead to more frequent headaches.
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Migraine & Headache
What's the Difference Between a Tension Headache and a Migraine?
Amarish Dave, DO explains how tension-type headache differs from migraine, including pain quality, activity, nausea and light sensitivity.
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Neurology Tests
What Is an EMG?
Amarish Dave, DO explains what an EMG (electromyography) and nerve conduction study test — how they measure nerve and muscle function, and why neurologists use them for neuropathy, carpal tunnel and pinched nerves.
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Neuropathy & Numbness
Why Do My Feet Feel Cold Even When They Aren’t?
Amarish Dave, DO explains why feet can feel cold even when they are warm to the touch — and how damaged or malfunctioning sensory nerves can send distorted temperature signals.
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Stroke & Brain Health
What Is Aphasia?
Amarish Dave, DO explains aphasia — a language disorder caused by brain damage that can affect speaking, understanding, reading, and writing.
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Seizures
What Happens to Your Brain During a Seizure?
Amarish Dave, DO explains what a seizure is in the brain — abnormal, excessive electrical activity — and why symptoms range from staring and unusual sensations to stiffening, jerking, and loss of consciousness.
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Back & Neck Problems
What Is Radiculopathy? A Pinched Nerve
Amarish Dave, DO explains what radiculopathy is — a pinched nerve root in the neck or lower back — and why pain, numbness, or tingling can travel into an arm or leg.
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Stroke & Brain Health
What Is a Stroke?
Amarish Dave, DO explains what happens during a stroke, why symptoms come on suddenly, and why every minute of emergency treatment matters.
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Stroke & Brain Health
What Is a TIA?
Amarish Dave, DO explains why a transient ischemic attack can cause stroke-like symptoms that improve quickly but still require emergency evaluation.
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Memory & Dementia
If a Parent Has Alzheimer's, Does That Mean You Will Get Dementia?
Amarish Dave, DO explains why a parent's Alzheimer's diagnosis raises risk but does not determine your future, and what APOE and rare inherited forms mean.
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Brain Health & Healthy Aging
What Happens to Your Brain Chemistry During Depression?
Amarish Dave, DO explains why depression involves more than low serotonin and how brain systems related to motivation, sleep, attention, and memory may be affected.
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Memory & Dementia
Can Dementia Be Prevented?
Amarish Dave, DO explains why dementia cannot be prevented with certainty and how addressing modifiable risks may support long-term brain health.
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Memory & Dementia
What Is the New Alzheimer's Disease Treatment?
Amarish Dave, DO explains how Leqembi and Kisunla target amyloid, who may qualify, and why biomarker confirmation, MRI monitoring, and individualized risk review matter.
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Memory & Dementia
How to Manage Agitation in Dementia
Amarish Dave, DO shares practical ways caregivers can look for triggers, reduce distress, redirect calmly, create predictable routines, and recognize sudden changes that need medical evaluation.
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Memory & Dementia
What Is Lewy Body Dementia?
Amarish Dave, DO explains Lewy body dementia, including changes in thinking and alertness, visual hallucinations, movement symptoms, and acting out dreams.
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Memory & Dementia
How to Manage Urinary Incontinence in Dementia
Amarish Dave, DO shares practical, dignity-centered strategies for scheduled toileting, safer bathroom access, simpler clothing, and recognizing changes that need medical evaluation.
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Memory & Dementia
Why Do People With Dementia Have Hallucinations?
Amarish Dave, DO explains why hallucinations can occur in dementia, why they are especially associated with Lewy body dementia, and when a sudden change needs medical evaluation.
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Memory & Dementia
What Is Frontotemporal Dementia?
Amarish Dave, DO explains frontotemporal dementia (FTD): early changes in personality, behavior, judgment and language, how it differs from Alzheimer's disease, and how it is evaluated.
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Memory & Dementia
What Is Normal Pressure Hydrocephalus? A Treatable Cause of Dementia Symptoms
Amarish Dave, DO explains normal pressure hydrocephalus (NPH)—walking difficulty, cognitive changes and urinary symptoms—and why it is a potentially treatable cause of dementia-like symptoms.
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Neuropathy & Numbness
Why Is My Foot Numb or Tingling?
Amarish Dave, DO explains common neurological causes of foot numbness and tingling—from peripheral neuropathy to a pinched nerve in the lower back—and which symptoms need urgent care.
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Neuropathy & Numbness
How Do You Treat Neuropathy?
Amarish Dave, DO explains the two goals of neuropathy treatment: identifying the underlying cause of nerve damage and treating the symptoms it causes.
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Migraine & Headache
What Is a Migraine Headache?
Amarish Dave, DO explains that migraine is a neurological disorder—not simply a bad headache—including common symptoms, aura, and when to see a neurologist.
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Migraine & Headache
Can Migraines Cause a Stroke?
Amarish Dave, DO explains the link between migraine with aura and stroke risk, why the absolute risk remains low, and which symptoms need emergency care.
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Migraine & Headache
What Is a Cluster Headache?
Amarish Dave, DO explains cluster headache: a rare but extremely painful one-sided headache disorder with attacks around or behind one eye.
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Memory & Dementia
What Tests Are Ordered When Evaluating for Dementia?
Amarish Dave, DO explains the tests a neurologist may order when evaluating memory loss and other thinking changes, from cognitive testing to blood work and brain imaging.
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Memory & Dementia
Why Can Someone With Dementia Seem Normal Sometimes?
Amarish Dave, DO explains why a person with dementia can have good moments, hours, or days—and why that does not rule out real cognitive change.
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Memory & Dementia
Can Lifestyle Impact Dementia?
Amarish Dave, DO explains how physical activity, vascular risk factors, nutrition, sleep, social engagement, and cognitive activity fit into brain health and dementia care.
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Memory & Dementia
How Do We Treat Dementia?
Amarish Dave, DO explains why dementia treatment depends on the cause, stage, symptoms, health risks, safety needs, and goals of each patient and family.
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Memory & Dementia
Is This Normal Aging—or Could It Be Dementia?
Amarish Dave, DO explains how occasional forgetfulness differs from cognitive change that affects everyday life.
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