The Root Cause NP Journal
Women’s Mental Health & Root-Cause Psychiatry Journal
Notes from the practice.
Evidence-informed articles about women’s mental health, ADHD, anxiety, hormonal changes, sleep, fatigue and the laboratory findings that may help complete the clinical picture.
Articles by Mabel C. Rodriguez, PMHNP-BC, a board-certified psychiatric mental health nurse practitioner.
Browse the journal
Featured article
Hormonal Health
Functional Psychiatry and PMDD Treatment: What Helps—and What Labs Can’t Tell You
Severe mood changes before your period deserve more than dismissal. Learn how PMDD is evaluated, which treatments have evidence, and where whole-person care and targeted labs fit.
By Mabel C. Rodriguez, PMHNP-BC
Published October 31, 2026 · 8-minute read
More articles

Lab-Informed Care
Brain Fog in Women: Causes, Symptoms and When to Seek Help
Brain fog is often blamed on stress, poor sleep or a demanding schedule. Here are several psychiatric, hormonal and nutritional factors that may deserve a closer look.
By Mabel C. Rodriguez, PMHNP-BC
Updated October 31, 2026 · 7-minute read

Lab-Informed Care
Normal Thyroid Labs but Still Feel Unwell? What Women Should Know
A normal thyroid result can be reassuring, but persistent fatigue, brain fog or mood changes still deserve a thoughtful evaluation.
By Mabel C. Rodriguez, PMHNP-BC
Updated October 31, 2026 · 8-minute read
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Anxiety & Mood
Magnesium and Anxiety in Women: What the Evidence Actually Says
Magnesium supports normal nerve and muscle function. But anxiety has many possible causes, and one mineral rarely explains the full picture.
By Mabel C. Rodriguez, PMHNP-BC
Updated October 31, 2026 · 6-minute read

Hormonal Health
Perimenopause or Adult ADHD? Why Brain Fog and Focus Problems Can Look So Similar
When concentration changes in your 40s, the timeline matters. Perimenopause can affect focus, memory, mood and sleep, while ADHD reflects a pattern that began much earlier in life.
By Mabel C. Rodriguez, PMHNP-BC
Updated October 31, 2026 · 7-minute read

Sleep
Waking Up at 3 A.M.? What Middle-of-the-Night Insomnia Can Mean for Women
Falling asleep may not be the problem — staying asleep is. What perimenopause, sleep apnea, thyroid problems, medications and an activated nervous system can have to do with middle-of-the-night waking.
By Mabel C. Rodriguez, PMHNP-BC
Updated October 31, 2026 · 8-minute read

Lab-Informed Care
Low Ferritin in Women: Fatigue, Brain Fog & Mood
A normal CBC does not always rule out depleted iron stores. Learn why ferritin may reveal more about persistent fatigue, focus and mood symptoms.
By Mabel C. Rodriguez, PMHNP-BC
Updated October 31, 2026 · 6-minute read
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Journal content is provided for general educational purposes and does not replace an individualized medical or psychiatric evaluation. Do not delay or change treatment based on information from this website without consulting a qualified healthcare professional.
