Anxiety or ADHD? Why the Two Are Commonly Confused
Restlessness, racing thoughts, procrastination, and difficulty focusing can occur in both. The pattern and timeline matter.
I'm Dr. Fiona Mao, a dual-certified psychiatric and family nurse practitioner. I explain mental health through psychiatry, psychology, medicine, and the whole-person factors — including nutrition, hormones, sleep, and inflammation — that can shape how you feel and function. The goal isn't to label you. It's to help you understand you.
Your symptoms tell a story. Your biology may hold clues. Understanding comes first.
Your symptoms tell a story. Your biology may hold clues. A Brain Check looks at the psychiatric, psychological, medical, medication, sleep, stress, hormonal, nutritional, and metabolic factors that may be contributing.
Your body is always talking. Your brain is listening. Let's run a Brain Check.
Annual Brain Check™ is a yearly self-reflection tool. Brain Check is Dr. Fiona Mao's educational process for examining mental-health questions and popular claims.
Seven questions. Five minutes. Your personal reflection summary — free, right here, right now.
One day, I hope checking in on mental health becomes as routine as an annual physical.
Want the full system — journaling prompts, weekly trackers, and 5-year tracking? See the Complete Workbook ($29) →
A guide to selected metabolic and nutritional markers that may be considered when symptoms, history, medications, or treatment response suggest they could be relevant. Download the free guide and bring it to your next appointment. No payment required.
Dr. Fiona Mao may financially benefit from purchases made through this page. Some external links may be affiliate links. Educational recommendations are not a substitute for individualized medical care.
What actually reaches your cells. Blood-sugar stability, protein, and the gut-brain connection shape energy, cravings, focus, and mood.
Inflammation can affect neurotransmitters, motivation, pain, fatigue, and mood. Symptoms can be biological signals, not character flaws.
Sleep is not optional maintenance. It is a core treatment target for mood, anxiety, memory, and resilience.
Cortisol, thyroid, and reproductive hormones set the tone for how you feel. Shifts across the month or a life stage can change everything.
Movement is how the body signals the brain to build, adapt, and regulate mood — one of the most reliable levers we have, and one of the most overlooked.
Chronic stress physiology — and the weight of past stress — can keep the alarm system switched on. Whether it ever powers down shapes mood, sleep, and focus.
Mental health rarely comes from one place. These are the categories a Brain Check moves through — and every explanation ends with something practical you can use.
Anxiety, depression, ADHD, trauma, burnout, compulsive patterns, medication effects, and relationship stress may overlap.
Sleep, hormones, nutrition, inflammation, illness, medications, metabolism, environment, and life load may all matter.
Every explanation ends with a therapy-informed skill, a question to bring to your provider, or guidance on when professional evaluation may help.
"The people who need this information the most are often the ones sitting in fifteen-minute appointments that leave them with more questions than answers. That changes here."
— Dr. Fiona Mao, DNP, APRN, PMHNP-BC · FNP-C
Every week I answer real questions from real people about mental health, medication, whole-person psychiatry, and the connection between your body and your mind. Questions are presented without identifying details and answered with evidence-informed education in plain language.
DrFionaMao.com exists to make the biology of brain health accessible, actionable, and routine — before crisis, not after.
I am a Doctor of Nursing Practice with dual board certifications — Psychiatric Mental Health Nurse Practitioner and Family Nurse Practitioner. I own Clarity Mind and Integrative Wellness in Texas, where I provide whole-person psychiatric care that includes medication management, supportive and therapy-informed interventions, and consideration of relevant medical, metabolic, hormonal, sleep, nutritional, and lifestyle contributors. Metabolic psychiatry is one part of that broader clinical approach.
My clinical background spans private practice, long-term care, telehealth, psychiatric consultation for oncology patients, surgical nursing, COVID-19 frontline work at Jacobi Hospital in New York City, a locked psychiatric unit, and correctional facility nursing. I have also served as academic faculty. I am the co-author of the bestseller The Gap.
I built this platform because of a gap I kept seeing in clinical practice. Patients who had been trying to get better for years — trying medication after medication, going to appointment after appointment — and still not feeling well.
I kept seeing patients whose care focused on one piece at a time — medication without enough context, therapy without medical contributors being considered, or laboratory findings without attention to the psychiatric experience. My approach brings together psychiatry, psychology, medication, relationships, behavior, sleep, hormones, medical conditions, nutrition, and metabolism.
I am a Black woman who has also watched my community suffer in silence around mental health for too long. The distrust of the medical system in Black communities is historically grounded and completely understandable. What I am building is a bridge — between the clinical evidence and the communities that have been most failed by the gaps in standard care.
This platform is for people whose symptoms have persisted despite treatment and who want to understand the broader psychiatric, psychological, medication-related, medical, relational, and lifestyle factors that may deserve discussion with their care team. For the women whose mood changed at forty and were told it was just stress. For the families who handle their problems inside their four walls because that is what survival required.
I am here because you deserve a full clinical picture. And you deserve someone who will explain it clearly.
Owner and clinical provider · Whole-person psychiatric practice · Texas
Psychiatric mental health NP services for long-term care facilities
Charge nurse · Inpatient psychiatric care · High-acuity clinical environment
New York City · Critical care frontline during the COVID-19 pandemic
Mental health and primary care in a correctional healthcare environment
Psychiatric mental health support for patients in oncology settings
Nursing care in surgical settings prior to NP practice
Nursing education
"My family — Miles, Faraja, Faiza, and Fae — is the dedication of everything I build. This work is for them first."
— Dr. Fiona Mao
Direct clinical services at Clarity Mind and Integrative Wellness — separate from the educational content on this site. Brain Check, the Annual Brain Check™, and the Six Drivers framework are educational tools; they are not part of, and do not replace, individualized clinical care.
Important: Brain Check, the Annual Brain Check™, and all educational content on this site are for educational purposes only. They do not diagnose or treat any condition, do not create a patient-provider relationship, and are not a substitute for the clinical care described on this page.
Media appearances, expert commentary, podcast interviews, conference speaking, and entertainment industry consulting inquiries.
Clinical education partnerships, CE course licensing, CME collaboration, and clinician referral network inquiries.
Free guides, educational condition guides, and provider-discussion resources covering the psychiatric, psychological, medical, and lifestyle factors that may be relevant to your care. Start with the Annual Brain Check™ or the free lab guide — then go deeper.
Selected metabolic and nutritional markers that may be worth discussing with your provider, depending on your symptoms, history, and treatment response. Fasting insulin, high-sensitivity CRP, full thyroid panel, vitamin D, and more. Download it. Print it. Bring it to your next appointment.
Download Free →Ten questions to help you discuss possible medical, medication, sleep, hormonal, nutritional, psychological, and metabolic contributors with your psychiatric provider — covering pharmacogenomics, inflammation, thyroid, blood sugar stability, and hormone evaluation, and whether selected testing may be relevant. Plain language. Ready to use.
Download Free →Educational guides covering Depression, Anxiety, ADHD, and Bipolar Disorder are available in the Stan Store — questions viewers may discuss with their clinicians, lab-discussion guidance, and more. These guides do not provide individualized diagnosis, medication changes, laboratory orders, or supplement treatment plans. For Bipolar Disorder specifically, supplement, dietary, and medication decisions should be coordinated with your treating psychiatric clinician.
Depending on your symptoms, medical history, medication use, and previous treatment response, your clinician may consider selected laboratory testing as part of a broader evaluation. The markers below are commonly discussed in that conversation.
| Lab Test | What It Measures | Why It May Be Relevant to Mental Health | How Clinicians May Interpret It |
|---|---|---|---|
| Fasting Insulin | Insulin resistance (early marker) | May be relevant to mood and cognitive symptoms in some patients | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
| HbA1c | 3-month average blood sugar | Chronic blood sugar elevation may affect neurotransmitter function | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
| High-Sensitivity CRP | Systemic inflammation | Elevated inflammatory markers may be associated with treatment response in some patients | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
| Full Thyroid Panel | TSH, Free T3, Free T4 | Thyroid dysfunction can present with mood and cognitive symptoms | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
| Vitamin D 25-OH | Vitamin D status | Deficiency has been associated with mood and cognitive symptoms in some studies | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
| B12 + Homocysteine | Neurological nutrient status | Deficiency can affect mood and cognition; elevated homocysteine has other health implications | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
| Fasting Lipids | Triglycerides + HDL ratio | May reflect broader metabolic health relevant to some treatment discussions | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
| Magnesium (RBC) | Cellular magnesium | May be relevant to stress-response and neurological function in some patients | Interpretation depends on lab method, history, symptoms, medications, and clinical guidelines |
Note: This lab guide is for educational purposes only and does not replace individualized interpretation by your treating clinician. It does not indicate that abnormal results explain any specific psychiatric symptom. Lab interpretation requires clinical context — work with your own licensed provider to order, interpret, and act on any results.
A plain-language explanation of how Brain Check, the Annual Brain Check™, and the educational resources on this site are researched, reviewed, and corrected.
Questions about a specific claim or source on this site? Reach out via the contact options on the Clinical Care page.
Plain-language information about how this site handles your data, what using it means, and how it's funded.
Effective date: July 23, 2026 · Last updated: July 23, 2026
Evidence-informed explanations for the questions people ask when their mood, focus, sleep, hormones, medication, stress, and physical health begin to overlap. Written to help you understand patterns, prepare better questions, and know when to seek individualized care.
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“Brain fog” can describe slowed thinking, poor concentration, forgetfulness, word-finding difficulty, or feeling mentally detached. The phrase is useful—but it does not identify the cause. This article shows how to think through the psychiatric, medical, medication, sleep, hormonal, nutritional, and post-infectious possibilities.
Read the Article →Restlessness, racing thoughts, procrastination, and difficulty focusing can occur in both. The pattern and timeline matter.
Achievement can conceal chronic tension, reassurance-seeking, perfectionism, and fear-driven productivity.
How timing, severity, impairment, and symptom tracking help distinguish ordinary cycle changes from a more serious pattern.
A practical framework for discussing benefits, side effects, emotional blunting, expectations, and follow-up with your prescriber.
Every week I answer real questions from real people about mental health, whole-person psychiatry, medication, and the connection between your body and your mind. Questions may be submitted without a name and are edited to remove identifying details before public discussion. No judgment. Clear education. I explain the psychiatric, psychological, medical, medication, and lifestyle factors that viewers may discuss with their own clinicians.
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Every Thursday a new episode answers two questions with an evidence-informed explanation plus a Clinical Pearl takeaway.
Use what you learn to ask better questions and advocate for a more complete evaluation. This show is educational — not a substitute for your care.
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Dr. Fiona Mao sees patients at Clarity Mind and Integrative Wellness in Texas. New patient inquiries and telehealth available for Texas residents.
Media appearances, expert commentary, podcast interviews, conference speaking, and entertainment industry consulting inquiries.
Clinical education partnerships, CE course licensing, CME collaboration, and clinician referral network inquiries.