Dr Rachel Ngan Yin CHAN
Assistant Professor (Non-clinical)

• Sleep and Psychopathology 
• Psychotherapy for Sleep and Mood Problems 
• Transdiagnostic Approach 
• Digital Mental Health 
• Stepped Care Model 
• Long covid 

• Travel Grant Award for Young Investigators in 2nd Congress of Asian Society of Sleep Medicine, Seoul, Korea, 2018
•  International Pediatric Sleep Association Online Young or New Investigator Poster Award, 2021
• 3rd Congress of Asian Society of Sleep Medicine Young Investigator Award, 2021
• World Sleep Congress 2025, New Investigator Award, 2025

• Motivational Interviewing Network of Trainers

1. Title: Sleep and Circadian Rhythm: Potential Window for Prevention of Mental Disorders in Adolescents.
   Project period: 01/01/2026-31/12/2030
   Funded source: Theme-based Research Scheme (TRS)
   Position: Co-PI
2.  Title: Prevent worsening of depressive symptoms using digital cognitive behavioral therapy for insomnia and circadian intervention in college students
   Project period: 01/01/2026 – 30/06/2028
   Funding source: RGC-ECS
   Capacity: PI
3. Title: A Motivational Interviewing-based Chatbot to Improve Sleep in Adolescents with Inadequate Sleep: A Randomized Controlled Trial
   Project period: 01/01/2027 -30/06/2029
   Funding source: GRF
   Capacity: PI
4. Title: Novel strategies to facilitate early detection, prevention and Intervention for long-Term Health problems related to COVID-19 (NovITor-COVID study)
   Project period: 01/04/2021 – 31/03/2027
   Funding source: HMRF Commission research
   Position: Co-PI
5. Title: Effect of a Smartphone-based, Mood-enhanced Cognitive Behavioral Therapy for Insomnia in At Risk Adolescents: A Randomized Controlled Trial.
   Project period: 01/11/2023 – 31/10/2026
   Funding source: HMRF
   Position: PI
6. Title: Sleep and circadian rhythm as a transdiagnostic mechanism in attention deficit hyperactivity disorder (ADHD)
   Project period: 01/06/2025 – 30/05/2028
   Funding source: RGC/YCRG
   Position: Co-PI
7. Title: A pilot experimental study of acoustic stimulation in enhancing slow wave sleep to improve sleep quality in insomnia disorder
   Project period: 29/06/2025 – 28/06/2027
   Funding source: CUHK Direct grant
   Position: PI
8. Title: Integrating Wearables for Real-Time Adaptation: Enhancing Sleep and Physical Activity with an AI-Powered Motivational Interviewing Chatbot in Adolescents
   Project period: 01/04/2026 – 31/03/2027
   Funding source: Knowledge Transfer Impact Project Fund
   Position: PI

1. Wei Y, Chen X, Chen SJ, Li SX, Chan JWY, Chan KCC, Li AM, Wing YK, Chan NY.
   The impact of insomnia and excessive daytime sleepiness on depression and suicidal ideation in adolescents: A three-year longitudinal study.
   Journal of Affective Disorder, 2026, 122043
2. Siu PM, Yu, JC, Yu AP, Recchia F, Li SX, Chan RNY, Fong DY, Chan DKC, Hui SC, Chung KF, Woo J, Wang CC, Irwin MR. (2025).
   Tai chi or cognitive behavioural therapy for treating insomnia in middle aged and older adults: randomised non-inferiority trial.
   bmj, 391.
3.  Chan NY#, Chen SJ, Ngan CL, Li SX, Zhang J, Lam SP, Chan JWY, Yu MWM, Chan KCC, Li AM, Wing YK.
   Advancing adolescent bedtime by motivational interviewing and text message: a randomized controlled trial.
   J Child Psychol Psychiatry 2025.
4. Chen SJ, Que JY, Chan NY, Shi L, Li SX, Chan JWY, Huang W, Chen CX, Tsang CC, Ho YL, Morin CM, Zhang JH, Lu L, Wing YK.
   Effectiveness of app-based cognitive behavioral therapy for insomnia on preventing major depressive disorder in youth with insomnia and subclinical depression: A randomized clinical trial.
   PLoS Med 2025; 22(1): e1004510.
5. Lau R, Su Q, Ching JYL, Lui RN, Chan TT, Wong MTL, Lau LHS, Wing YK, Chan RNY, Kwok HYH, et al. (2024).
   Fecal Microbiota Transplantation for Sleep Disturbance in Post-acute COVID-19 Syndrome.
   Clin Gastroenterol Hepatol. Jun 20:S1542-3565(24)00542-1. doi: 10.1016/j.cgh.2024.06.004.
6. Chen SJ, Zhang J, Li SX, Tsang CC, Chan KCC, Au CT, Li AM, Kong AP, Wing YK, Chan NY. (2021)
   The trajectories and associations of eveningness and insomnia with daytime sleepiness, depression and suicidal ideation in adolescents: A 3-year longitudinal study.
   Journal of affective disorder, 294:533-542.
7. Chan NY, Zhang J, Yu MWM, Lam SP, Li SX, Kong APS, Li AM, Wing YK.
   Impact of a modest delay in school start time in Hong Kong school adolescents.
   Sleep Medicine. 2017; 30: 164-70.
8. Zhang J, Chan NY, Lam SP, Li SX, Liu Y, Chan JW, Kong AP, Ma RC, Chan KC, Li AM, Wing YK.
   Emergence of Sex Differences in Insomnia Symptoms in Adolescents: A Large-Scale School-Based Study.
   Sleep. 2015; 39: 1563-70.
9. Chan NY, Lam SP, Zhang J, Yu MWM, Li SX, Li AM, & Wing YK.
   Sleep education in Hong Kong.
   Sleep Biological Rhythm. 2015; 14: 21-5.
10. Wing YK, Chan NY, Yu MWM, Lam SP, Zhang J, Li SX, Kong AP, Li AM.
    A school-based sleep education program for adolescents: a cluster randomized trial.
    Pediatrics. 2015; 13: e635-43.

Supervisor of:
Mr. NGAN, Cho Lam
Ms. YONG, Wei
Ms. LI, Wai Tung

Co-Supervisor of:
Ms. AO, Weng Ian
Ms. SUN, Wai Han