Depression
Low mood, reduced motivation, and lethargy
Opening November 9, 2026
MoonGyeol Psychiatry Clinic
When the mind recovers, life moves again.
MoonGyeol (문결) means both a door of the mind and the grain of the mind — the unique texture of each person's inner world.
What does your MoonGyeol look like today?
And how is your sleep?
About MoonGyeol
The Path MoonGyeol Walks
Behind every symptom lies a person's own life and story. MoonGyeol Psychiatry Clinic does not define a person by a single diagnosis.
We believe that difficulties of the mind are not simply emotional problems, but are intertwined with the body, the brain, sleep, and daily rhythms. That is why MoonGyeol looks as closely and precisely as each person needs, and works together to find a path to recovery that fits them.
Moon Seok-hyun, Director, MoonGyeol Psychiatry Clinic
Moon Seok-hyun Psychiatrist, MD
Education & Training
- M.D., Chosun University School of Medicine
- Internship, Yonsei University Health System
- Residency in Psychiatry, Chosun University Hospital
- Clinical Fellowship in Psychiatry, Seoul National University Bundang Hospital
Career Highlights
- Attending Physician, Sleep Clinic, Seoul National University Bundang Hospital
- Attending Physician, Mental Health Clinic, Cancer Center, Seoul National University Bundang Hospital
- School Doctor, Gwangju Student Mental Health Support Center
- Deputy Director, Samsung Gonggam Psychiatric Clinic
- Clinical Adjunct Professor of Psychiatry, Cham Joeun Hospital (Kyung Hee University Medical Center affiliated teaching hospital)
- Deputy Director, Maeum Deundeun Psychiatric Clinic
Research & Publications
International Journals
- Moon SH, Hong JK, Lee M, Kim HH, Yoon IY. Impact of depression on cognitive function and phenoconversion to neurodegenerative diseases in patients with isolated REM sleep behavior disorder. Acta Neurologica Scandinavica. Published online 2024. [Read more]
- Chung SJ, Choi YH, Kwon H, Park YH, Yun HJ, Yoo HS, Moon SH, Ye BS, Sohn YH, Lee JM. Sleep disturbance may alter white matter and resting state functional connectivities in Parkinson’s disease. Sleep. 2017;40(3). [Read more]
Domestic (Korean) Journals
- Moon SH, Kim SG, Yang HJ, Seo EH, Yoon HJ. Psychological factors influencing anxiety symptoms in patients with hypertension [in Korean]. Anxiety and Mood. 2022;18(1):17-25. [Read more]
Conference Presentations & Invited Lectures
International Conference Presentations
- World Sleep 2023 (Rio de Janeiro, Brazil)
“Comparison of Actigraphy Measurements and Sleep Diary against Polysomnography According to Insomnia and Apnea” - 10th BESETO International Psychiatry Conference
“The impact of Depression on the Cognitive function and Conversion in Isolated REM Sleep Behavior Disorder” - 13th Cognition, Sleep, Mood and Stress (COSMOS) Symposium
“Network Analysis of REM Sleep Behavior Disorder according to REM sleep without atonia”
Invited Lectures
- Invited Speaker, 2024 Korean Society for Laser Medicine in Dermatology & Trichology — lecture for medical professionals on stress and emotional burnout, and the mental health and psychiatric characteristics of aesthetic/cosmetic surgery patients
Clinical Trial Participation
- Phase III clinical trial evaluating the efficacy and safety of lurasidone in patients with schizophrenia presenting with acute psychotic symptoms
- Clinical trial on the effect of a transcranial alternating current stimulation device (CS-01) on improving insomnia
- Effect of a wearable light-based device on serum vitamin D levels in healthy adults
- Multicenter clinical trial evaluating the pharmacodynamics of lemborexant in Korean subjects with insomnia
- Clinical trial evaluating the efficacy and safety of the probiotic NVP-1704 for improving sleep
Education & Specialized Training
- Completed training in polysomnography
- Completed advanced training course in CBT for anxiety disorders
- Completed training in Cognitive Behavioral Therapy (CBT)
- Completed EMDR basic training
- Completed specialized training program for dementia care physicians
Publications & Media
Book
Author, The Star Named You (당신이라는 이름의 별이 궁금합니다)
YouTube
Runs the YouTube channel Story-filled Psychiatry, sharing a variety of stories about mental health and the mind
Society Memberships
- Member, Korean Neuropsychiatric Association
- Member, Korean Sleep Research Society
- Member, Insomnia Disorder Study Group, Korean Neuropsychiatric Association
- Lifetime Member, Korean Society of Emotion-Focused Cognitive Behavioral Therapy
- Member, Korean Association of Cognitive Behavioral Therapy
- Member, Korean Anxiety Disorders Association
Mind & Sleep
The mind and sleep are deeply connected.
Anxiety · Panic
Persistent anxiety and unexpected panic symptoms
Sleep Disorders
Insomnia, hypersomnia, and disrupted sleep rhythms
Stress · Burnout
Recovery for an exhausted mind and body
Adult ADHD · Reduced Concentration
Difficulties with attention, executive function, and impulsivity
Dementia & Cognitive Decline
Evaluation and management of memory loss and cognitive change
Treatment-Resistant Depression
Depression that has not responded sufficiently to prior treatment
Mind & Brain Assessment
To understand the mind, as precisely as it takes.
QEEG
Looks at current brain function through EEG activity.
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HRV
Looks at current autonomic nervous system status and the body's stress response through heart rate variability (HRV).
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CAT
Objectively evaluates ADHD-related cognitive function, including attention and impulse control.
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CNSVS
Evaluates a range of cognitive functions, from memory and attention to processing speed and executive function.
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MCI Screening Assessment
Screens for the possibility of mild cognitive impairment through EEG and cognitive function testing.
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Comprehensive Psychological Evaluation
A comprehensive psychological evaluation to more deeply understand your psychological difficulties and individual characteristics.
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Sleep Assessment
Evaluates your current sleep status, including sleep apnea and your sleep-wake rhythm.
Learn more →Personalized Treatment
Not a single treatment, but the treatment that fits the person.
Medication
Medication that considers both symptoms and daily life
Biofeedback Therapy
Relaxation and stress regulation using breathing and physiological signals
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TMS Therapy
Treatment using non-invasive brain stimulation
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tDCS Therapy
Non-invasive neuromodulation using a mild direct current
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PBM Care
Non-invasive photobiomodulation using light
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Spravato (Esketamine) Therapy
Specialized treatment for treatment-resistant depression
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Psychological Counseling
MoonGyeol Counseling Center
Offers counseling programs led by professional psychological counselors, in partnership with MoonGyeol Psychiatry Clinic.
Our System
We look closely, understand together, treat what's needed, and help you return to daily life.
1
Assessment
We look closely and precisely.
We comprehensively evaluate symptoms, lifestyle, sleep, stress, and cognitive function.
2
Understand
We help you understand.
We explain the assessment results and your current condition in a way that's easy to understand.
3
Treat
We treat.
We combine whichever medication and non-medication treatments are needed.
4
Recover
Back to daily life.
The goal of treatment is not simply to eliminate symptoms, but to restore your life.
Sleep & Stress
Recovery begins with sleeping well.
QEEG · HRV · Biofeedback · Relaxation Therapy · Sleep Assessment
A Space to Recover
We hope you feel at ease while you're here.
How is your MoonGyeol?
If your mind feels heavy, your sleep has fallen apart,
and returning to daily life feels overwhelming,
you don't have to endure it alone.
MoonGyeol Psychiatry Clinic will be with you.
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