Energy
Whole-Body Health
Fatigue and Brain Fog Evaluation in Scarsdale, NY
Protocol Health looks for the causes of persistent tiredness and brain fog at our Scarsdale, NY clinic: thyroid, iron, B12, blood sugar, hormones and sleep, checked with labs drawn on site. Treatment follows what the workup finds.
Consultation $249, or $349 with blood work.
Medically reviewed by Richard Dentico, MD, Medical Director
★ 5.0 on Google · 107 reviews (as of October 2026) · Physician-led, family-owned
Our Scarsdale clinic serves Westchester County. Telehealth in NY, NJ, CT, FL and CA.
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Fatigue, Brain Fog & Low Energy at Protocol Health
Before you book
Tiredness has causes worth finding
Persistent fatigue and poor focus overlap with thyroid problems, low iron or B12, blood sugar swings, low testosterone, perimenopause, poor sleep and stress. Because the symptoms look alike, guessing wastes time. A targeted panel narrows it down, and the plan treats what is found rather than the tiredness itself.
When fatigue is worth a workup
When it lasts weeks, does not lift with rest, or comes with other changes.
- Tired despite enough sleep
- Brain fog or poor concentration
- Low motivation or slower recovery from exercise
- Energy crashes in the afternoon
What treatment looks like
It depends entirely on the cause.
A deficiency. Correcting low B12, iron or vitamin D.
Hormones. Treating confirmed low testosterone or perimenopause symptoms.
Sleep. Snoring or sleep apnoea symptoms point to a sleep evaluation.
Peptides and NAD+. Sometimes asked about; the evidence in people is limited and your provider will say so.
What the workup checks
Thyroid. A full thyroid panel, not TSH alone.
Iron, B12 and vitamin D. Common, correctable causes of low energy.
Blood sugar. HbA1c and fasting markers.
Hormones. Testosterone in men; cycle and menopause hormones in women.
How the fatigue workup runs
Labs first.
- Consultation. Sleep, diet, stress, medications and symptoms.
- Labs. Drawn at the Scarsdale clinic or near home.
- Review. What the results show and what they rule out.
- Plan. Targeted at the cause, with follow-up.
Common questions
Fatigue, Brain Fog & Low Energy: frequently asked questions
What labs check for the cause of fatigue?
Commonly thyroid function, B12, iron studies, vitamin D, blood counts and metabolic markers, chosen for your history.
Will B12 injections fix my fatigue?
Only if B12 is low. That is why levels are checked first.
Can hormones cause brain fog?
Yes. Low testosterone in men and perimenopause in women both commonly do.
Can I start by telehealth?
Yes, for eligible patients in New York, New Jersey, Connecticut, Florida and California, with labs near home.
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