Evidence-Based Supplement & Herb Guides

MMSE Test: What It Measures and When It Is Used

Learn what the MMSE test measures, how its 30-point score is interpreted, when doctors use it, and where this common cognitive screening tool helps or falls short.

The MMSE is one of the best-known brief cognitive screening tools used in medical settings. It is often given when a clinician wants a...

MoCA Test: What It Measures and What the Score Means

Learn what the MoCA test measures, how it is scored, what different score ranges can suggest, and why a low MoCA result should always be interpreted in full clinical context.

The Montreal Cognitive Assessment, commonly called the MoCA, is a brief cognitive screening test used when there is a concern about memory, thinking speed,...

MoCA vs MMSE vs Mini-Cog: Key Differences in Memory Testing

Compare MoCA, MMSE, and Mini-Cog in one clear guide. Learn which memory test is more sensitive, when each is used, and what happens after an abnormal result.

Memory testing can feel more serious than it looks. A clinician may ask someone to remember a few words, draw a clock, name the...

Mood Disorder Questionnaire (MDQ): What It Screens For and What Results Mean

Learn what the Mood Disorder Questionnaire screens for, how the MDQ is scored, what a positive result means, and why it cannot diagnose bipolar disorder on its own.

The Mood Disorder Questionnaire is a short screening tool used to flag symptoms that may fit bipolar spectrum disorders, especially past episodes of mania...

Most Common Brain Tests: MRI, CT, EEG, PET, Sleep Studies, and Lab Work

Learn what MRI, CT, EEG, PET, sleep studies, and lab work actually show, when doctors order each test, and how these common brain tests fit into real diagnostic workups.

Brain-related symptoms can be unsettling because they may affect memory, mood, speech, sleep, balance, concentration, movement, or awareness. A single test rarely explains everything....

Most Common Cognitive Tests: What They Measure and When They Are Used

Learn what the most common cognitive tests measure, when doctors use Mini-Cog, MoCA, MMSE, SLUMS, and neuropsychological testing, and what abnormal results really mean.

Cognitive tests are structured tasks that help clinicians understand how a person is thinking, remembering, paying attention, using language, solving problems, and navigating daily...

Most Common Mental Health Screening Tools: What They Measure and When They Are Used

Learn which mental health screening tools are used most often, what PHQ-9, GAD-7, PC-PTSD-5, MDQ, ASQ, and other screeners measure, and what happens after a positive result.

Mental health screening tools are short questionnaires or structured question sets that help identify symptoms needing closer attention. They are often used in primary...

MRI vs CT Scan for Brain Symptoms: Which Test Is Better and Why?

Learn when MRI is better than CT for brain symptoms, when CT should come first, and how doctors decide which scan makes the most sense in emergencies and routine workups.

When someone has headaches, confusion, memory changes, dizziness, weakness, seizures, or other brain-related symptoms, imaging may be part of the medical workup. The common...

MSLT Sleep Test: What It Measures for Excessive Daytime Sleepiness

Learn what the MSLT sleep test measures, how it is used for excessive daytime sleepiness, what results may suggest, and why preparation matters for narcolepsy and idiopathic hypersomnia evaluation.

Excessive daytime sleepiness is more than feeling tired after a poor night’s sleep. It means the brain has trouble staying awake when wakefulness should...

Neuropsychological Testing After Concussion or Brain Injury

Learn when neuropsychological testing is useful after concussion or brain injury, what it measures, when to do it, how results are interpreted, and how testing helps guide recovery.

After a concussion or traumatic brain injury, symptoms can be hard to interpret. Headaches, fatigue, slower thinking, memory lapses, irritability, dizziness, poor sleep, and...

Neuropsychological Testing for ADHD: When It Helps and When It Does Not

Learn when neuropsychological testing can help with ADHD, when it often does not add much, and what test results can and cannot actually prove.

ADHD is diagnosed by understanding a person’s symptoms, development, functioning, and everyday patterns over time. Neuropsychological testing can add valuable information, especially when the...

Neuropsychological Testing for Autism, Learning Problems, and Executive Dysfunction

Learn how neuropsychological testing helps clarify autism, learning problems, and executive dysfunction, what the evaluation includes, and how results guide diagnosis, accommodations, and next steps.

Neuropsychological testing can help clarify why a person struggles with communication, learning, attention, organization, memory, processing speed, problem solving, or everyday independence. It is...

Neuropsychological Testing for Dementia and Memory Loss

Memory changes can be unsettling, especially when they affect conversations, finances, appointments, driving, work, or daily routines. Neuropsychological testing helps clarify whether those changes...

Neuropsychological Testing: What It Measures and When It Is Needed

Learn what neuropsychological testing measures, when it is needed, how it differs from simpler cognitive tests, and what the results can show for children, adults, and older adults.

Neuropsychological testing is a detailed way to understand how thinking skills, emotions, behavior, and brain function are working together. It is often used when...

OCD Screening: How Doctors Assess Obsessions and Compulsions

Learn how OCD screening works, what doctors ask about obsessions and compulsions, which tools they use, how they separate OCD from anxiety and other conditions, and what a positive screen means.

OCD screening is often the first step in figuring out whether intrusive thoughts, repetitive behaviors, mental rituals, or avoidance patterns may be part of...

OCD vs Anxiety: How Doctors Tell the Difference

Learn how doctors tell OCD from anxiety by examining obsessions, compulsions, worry patterns, assessment tools, overlap with other disorders, and why the diagnosis changes treatment.

OCD and anxiety can feel closely connected because both can involve fear, distress, avoidance, body tension, sleep problems, and a strong urge to make...

Online Mental Health Tests: Are They Accurate and Worth Taking?

Learn which online mental health tests can be useful, where their accuracy breaks down, and how to use results wisely without mistaking a screening score for a diagnosis.

Online mental health tests can be useful when they help you name what you are experiencing, notice patterns, and decide whether it is time...

Panic Attack vs Anxiety Disorder: How Doctors Tell the Difference

Learn how doctors tell the difference between a panic attack and an anxiety disorder, what symptoms matter most, what medical causes they rule out, and when to seek urgent care.

A racing heart, chest tightness, dizziness, shaking, and a sudden fear that something is terribly wrong can feel alarming, especially when symptoms come out...

Panic Disorder Assessment: How It Differs From General Anxiety Screening

Learn how panic disorder assessment works, how it differs from general anxiety screening, which tools clinicians use, what doctors try to rule out, and what happens after evaluation.

Panic symptoms can look like many other problems: a racing heart, chest tightness, dizziness, shortness of breath, trembling, nausea, or a sudden fear that...

PC-PTSD-5 vs PCL-5: PTSD Screening and Assessment Explained

Learn the difference between PC-PTSD-5 and PCL-5, when each PTSD tool is used, how scoring works, and what a positive trauma screen should lead to next.

PTSD screening tools can be useful, but they are often misunderstood. A short questionnaire can help identify symptoms that deserve attention, yet it cannot...