Michael J. Howell

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About

Michael J. Howell is a leading clinician-scientist in sleep medicine and neurology, whose work has fundamentally advanced our understanding of the interface between sleep disorders and neurodegenerative diseases. His research focuses on the clinical manifestations and pathophysiology of REM sleep behavior disorder (RBD), particularly its role as a harbinger of synucleinopathies like Parkinson’s disease. In his highly cited 2020 study, "REM sleep without atonia is associated with increased rigidity in patients with mild to moderate Parkinson’s disease," Howell demonstrated that the loss of normal muscle atonia during REM sleep correlates directly with motor symptom severity, providing critical evidence that sleep architecture can serve as a biomarker for disease progression. This work, which has garnered 27 citations, has shaped clinical screening protocols for early Parkinson’s detection. Beyond this landmark paper, Howell has contributed extensively to the characterization of RBD and its links to cognitive decline, earning recognition as a thought leader in sleep neurology. His research bridges the gap between sleep medicine and movement disorders, offering new avenues for early intervention and patient management.