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ASSISTANT PROFESSOR | Medicine, Pulmonary, Critical Care and Sleep Medicine
Biography
Dr. Andrew W. Varga is a neuroscientist and physician at The Mount Sinai Integrative Sleep Center, board certified in both neurology and sleep medicine. He earned a Ph.D. in neuroscience at Baylor College of Medicine and subsequently attended medical school at New York Medical College. He completed an internship in Medicine at St. Vincent's Catholic Medical Center and a residency in Neurology at Harvard - Beth Israel Deaconess Medical Center. He then completed a fellowship in Sleep Medicine at NYU. Dr. Varga has a longstanding interest in mechanisms of learning and memory and the role of sleep in memory consolidation. His clinical interests involve all areas of sleep medicine with particular interest in movement disorders in sleep (RLS, REM Behavior Disorder), sleep in neurodegenerative diseases (such as Alzheimer’s Disease and Parkinson’s Disease), and generalized cognitive deficits as a function of fragmented sleep.
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Collaborations and top research areas from the last five years
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Associations of Chronic Insomnia, Longitudinal Cognitive Outcomes, Amyloid-PET, and White Matter Changes in Cognitively Normal Older Adults
Carvalho, D. Z., Kolla, B. P., McCarter, S. J., St. Louis, E. K., Machulda, M. M., Przybelski, S. A., Fought, A. J., Lowe, V. J., Somers, V. K., Boeve, B. F., Petersen, R. C., Jack, C. R., Graff-Radford, J., Varga, A. W. & Vemuri, P., 2026, In: Neurology. 105, 7Research output: Contribution to journal › Article › peer-review
Open Access6 Scopus citations -
Differential motor signatures in isolated and narcolepsy-related REM sleep behaviour disorder: a preliminary study
Drakatos, P., Duncan, I., Wasserman, D., Gnoni, V., O’Regan, D., Varga, A. W., Tan, H., Ashkan, K., Grinberg, L. T., Parrino, L., Ferini-Strambi, L., Goadsby, P. J., Chaudhuri, K. R. & Rosenzweig, I., 2026, In: Frontiers in Neurology. 16, 1749306.Research output: Contribution to journal › Article › peer-review
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High obstructive sleep apnea hypoxic burden associates with reduced locus coeruleus structural integrity on 7T MRI in older adults
Kam, K., Gaggi, N. L., Parekh, A., Valencia, D. I., Quintana Licona, D. A., Hishinuma, S. S., Martillo, K. R., Chu, S. S., Varga, A. W., Hwang, J., Williams, M. K., Mullins, A. E., Tolbert, T. M., Balchandani, P., Iosifescu, D. V., Blessing, E. M., Bubu, O. M., Ayappa, I., Rapoport, D. M. & Morris, L. S. & 1 others, , 1 Mar 2026, In: Sleep. 49, 3, zsaf398.Research output: Contribution to journal › Article › peer-review
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Obstructive sleep apnea severity, Alzheimer's disease plasma markers, and CSF brain amyloidosis and tau pathology
Bubu, O. M., Mullins, A. E., Shah, S., Gills, J. L., Kam, K., Parekh, A., Umasabor-Bubu, O. Q., Turner, A. D., Bernard, M., Briggs, A., Ramos-Cejudo, J., Valkanova, E., Mbah, A. K., Pahari, P., Debure, L., Ghuman, M., Boutajangout, A., Williams, N. J., Hwang, J. & Williams, M. K. & 6 others, , Mar 2026, In: Alzheimer's and Dementia. 22, 3, e71270.Research output: Contribution to journal › Article › peer-review
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Response to Li and Wang: Slow oscillations and spatial memory: Reflecting on the limited behavioral effects of slow wave sleep-specific CPAP withdrawal
Mullins, A. E., Parekh, A., Kam, K., Valencia, D. I., Schoenholz, R., Fakhoury, A., Castillo, B., Roberts, Z. J., Wickramaratne, S., Tolbert, T. M., Hwang, J., Blessing, E. M., Bubu, O. M., Rapoport, D. M., Ayappa, I., Osorio, R. S. & Varga, A. W., 1 Jan 2026, In: Sleep. 49, 1, zsaf346.Research output: Contribution to journal › Letter › peer-review
Open Access
Press/Media
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Experts say that a lack of consistent sleep habits is linked to an increased risk of obesity and cognitive decline
31/03/26
1 item of Media coverage
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Sleep consistency: The one sleep habit experts wish you would adopt
5/03/26
1 item of Media coverage
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Research Data from Icahn School of Medicine at Mount Sinai Update Understanding of Obstructive Sleep Apnea (High Obstructive Sleep Apnea Hypoxic Burden Associates With Reduced Locus Coeruleus Structural Integrity On 7t Mri In Older Adults)
Iosifescu, D. V., Parekh, A., Kam, K., Morris, L., Ayappa, I., Varga, A. & Balchandani, P.
12/02/26
1 item of Media coverage
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Why keeping a regular sleep schedule matters as much as hours slept
20/01/26
3 items of Media coverage
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